A protection mechanism for a capacitive screen

Abstract

The utility model discloses a kind of protective mechanisms of capacitive screen, it is related to capacitive screen field.The utility model includes screen and protective piece, the screen includes main body, the outside of the main body is integrally arranged with protective piece, by setting up and screen main body integrally structured protective piece, and the clamping positioning structure of the flange of the mounting seat and the sliding slot, ratchet ruler, L-shaped card, torsional spring connection's ratchet pawl piece composition is formed in one piece, wherein the integrally designed protective piece around type flange and main body avoid protective gap and overall wrap screen edge, the continuous extension arc-shaped transition rubber anti-collision strip of flange outer surface can effectively buffer collision impact, disperse external force, solve the technical problem that traditional capacitive screen frame impact resistance is insufficient, leading to screen easy to break and crack, and adhesive tape adhesion assembly is complicated, poor stability, long-term use is prone to loosen and maintenance separation is prone to damage screen.

Description

Technical Field

[0001] This utility model relates to the field of capacitive touchscreens, specifically a protective mechanism for capacitive touchscreens. Background Technology

[0002] Capacitive touchscreens are a common type of touch display component and are widely used in various electronic devices. During use, they are easily damaged by external forces such as edge collisions and squeezing, so they need to be protected by protective structures.

[0003] However, traditional capacitive screen protection methods typically involve setting a bezel around the screen edge. These bezels are often simple, rigid structures that only provide basic shielding for the screen edges. When subjected to collisions or impacts, the bezels themselves lack sufficient impact resistance and cannot effectively buffer external forces, resulting in poor protection. The screen edges are still prone to damage and cracking. Furthermore, when assembling the capacitive screen with the LCD screen, traditional assembly methods often use adhesive strips to bond and fix the two together. This fixing method is not only cumbersome to assemble, but the adhesive strength of the strips is also easily affected by factors such as ambient temperature and humidity, leading to insufficient connection stability between the capacitive screen and the LCD screen. After long-term use, loosening is likely to occur. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a protective mechanism for capacitive screens, so as to solve the technical problems of poor frame protection and poor impact buffering effect of traditional capacitive screens, which make the screen easy to break and crack, as well as the cumbersome assembly of capacitive screens and LCD screens using adhesive strips, and the connection stability being easily affected by the environment and loosening.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective mechanism for a capacitive touchscreen, comprising a screen and a protective component, wherein the screen comprises a main body, and the outer side of the main body and the protective component are integrally formed. The protective component includes a guard edge, the outer surface of which is provided with an anti-collision strip. The back of the guard edge is provided with a mounting groove for mounting the LCD screen. Mounting seats are provided on the top and both sides of the guard edge. A sliding groove is provided in the mounting seat. A ratchet is provided on the lower inner side of the sliding groove. A card for clamping the LCD screen is slidably connected in the sliding groove. A pressure plate groove passes through the top of the card, and a pawl that meshes with the ratchet is rotatably connected in the pressure plate groove through a torsion spring.

[0006] By adopting the above technical solutions, the protective edge surrounds and wraps around the edge of the screen, and the anti-collision strip enhances the buffer; the mounting slot realizes the initial positioning of the LCD screen, and the sliding groove, ratchet ruler and card, and pawl in the mounting base cooperate to stably clamp without the need for adhesive strips, which not only improves the protection effect, but also optimizes the convenience of assembly and maintenance.

[0007] Furthermore, the card is L-shaped, and the protective component is made of engineering plastic.

[0008] By adopting the above technical solution, the L-shaped card can fit the surface and edge of the LCD screen to form multi-point clamping and improve the fixation stability; the protective parts are made of engineering plastics, which have the advantages of structural strength and lightweight, and can stably support the edge protection, mounting base and other structures, avoiding the failure of protection or clamping due to material problems, and adapting to the overall use needs.

[0009] Furthermore, the anti-collision strip is made of rubber.

[0010] By adopting the above technical solutions, the rubber anti-collision strip has excellent elasticity. When it is hit, it can absorb the impact energy through deformation, reducing the effect of external force on the screen edge. Combined with the surrounding arrangement of the edge guard, it can form a continuous buffer protection, solving the problem of insufficient impact resistance of traditional rigid frames and effectively reducing the risk of screen damage.

[0011] Furthermore, a terminal block is provided at the bottom of the main body.

[0012] By adopting the above technical solution, the wiring bar at the bottom of the main body is reasonably laid out, avoiding conflict with the protective edge, mounting base and other structures of the protective components, and does not affect the protection and clamping performance; the wiring operation is concentrated at the bottom, which makes it convenient for staff to connect external circuits, and at the same time, the wiring maintenance is more convenient during subsequent maintenance, ensuring stable signal transmission.

[0013] Furthermore, the pawl plate remains engaged with the ratchet ruler under the force of the torsion spring, and the card achieves positioning after sliding through the cooperation of the pawl plate and the ratchet ruler.

[0014] By adopting the above technical solution, the torsion spring keeps the pawl plate engaged with the ratchet ruler, ensuring that the card can be stably positioned after sliding to any clamping position and preventing it from loosening on its own; no additional locking components are required, which simplifies the structure and improves clamping reliability. It can be fixed without precise alignment during assembly, and unlocking is more convenient during maintenance.

[0015] Furthermore, the guard is arranged around the edge of the main body, and the inner wall of the mounting groove fits snugly against the edge of the LCD screen.

[0016] By adopting the above technical solution, the surrounding edge protection forms a complete wrap around the screen edge, which is more comprehensive than partial protection; the inner wall of the mounting slot fits the edge of the LCD screen, enabling the LCD screen to achieve accurate initial positioning quickly, reducing assembly deviation, providing a stable foundation for subsequent card clamping, and improving assembly efficiency.

[0017] Furthermore, the anti-collision strip extends continuously along the outer surface of the edge protector, and the outer surface of the anti-collision strip has an arc-shaped transition structure.

[0018] By adopting the above technical solutions, the continuously extending anti-collision strips form a complete buffer layer without any protective breaks; the arc-shaped transition surface can disperse the impact force to the perimeter, avoiding stress concentration damage to the edge protection or screen; combined with rubber material, the buffering effect is further enhanced, improving the reliability of anti-collision protection for the screen edge.

[0019] Furthermore, the mounting base and the edge guard are integrally formed, and the extension direction of the groove is perpendicular to the opening direction of the mounting groove.

[0020] By adopting the above technical solutions, the mounting base and the edge guard are integrally formed to eliminate assembly gaps, resulting in higher structural strength and preventing loosening after long-term use; the direction of the slide groove is perpendicular to the mounting groove, so that the card clamping force is perpendicular to the LCD screen embedding direction, forming a stable vertical clamping, preventing the LCD screen from shifting and improving clamping reliability.

[0021] In summary, the present invention has the following main advantages: This utility model features a clamping and positioning structure consisting of a protective component integrated with the screen body, a mounting base integrally formed with the edge protector, a sliding groove, a ratchet ruler, an L-shaped card, and a pawl connected by a torsion spring. The protective component's wraparound edge design, integrated with the main body, avoids gaps and fully covers the screen edge. The continuously extending arc-shaped transition rubber anti-collision strip on the outer surface of the edge protector effectively buffers collision impacts and disperses external forces. In the clamping and positioning structure, the mounting groove fits snugly against the edge of the LCD screen for initial positioning. The L-shaped card slides along the sliding groove and adheres to the screen body. The pawl, under the force of the torsion spring, always engages with the ratchet ruler, ensuring stable positioning and clamping of the card. This design eliminates the need for adhesive strips and comprehensively solves the technical problems of traditional capacitive screens, such as insufficient impact buffering of the frame leading to easy screen breakage and cracking, cumbersome assembly of adhesive strips, poor stability, easy loosening after long-term use, and easy screen damage during maintenance and separation. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a rear-view three-dimensional structural diagram of the present invention; Figure 3 This utility model Figure 2 Enlarged structural diagram at point A; Figure 4 This is a side view cross-sectional three-dimensional structural diagram of the present invention.

[0023] In the diagram: 1. Screen; 101. Main body; 102. Terminal block; 2. Protective components; 201. Edge guard; 202. Anti-collision strip; 203. Mounting slot; 204. Mounting base; 205. Slide groove; 206. Ratchet; 207. Card; 208. Pressure plate slot; 209. Pawl plate. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0025] A protective mechanism for a capacitive touchscreen, such as Figure 1-4 As shown, it includes a screen 1 and a protective component 2. The screen 1 includes a main body 101, and the outer side of the main body 101 and the protective component 2 are integrated into one structure. The protective component 2 includes a guard edge 201, with an anti-collision strip 202 on its outer surface. A mounting groove 203 for mounting the LCD screen is provided on the back of the guard edge 201. Mounting seats 204 are provided on the top and both sides of the guard edge 201. A sliding groove 205 is provided within the mounting seat 204. A ratchet 206 is provided on the lower inner side of the sliding groove 205. A card 207 for clamping the LCD screen is slidably connected within the sliding groove 205. A pressure plate groove 208 extends through the top of the card 207, and a pawl 209 that meshes with the ratchet 206 is rotatably connected within the pressure plate groove 208 via a torsion spring. The main body 101 of the screen 1 and the protective component... Component 2 adopts an integrated structure, eliminating the assembly gap between the two, avoiding gaps that could lead to protection failure, and improving protection reliability; the edge 201 of the protective component 2 surrounds the edge of the main body 101, forming a complete wrap-around protection, and the anti-collision strip 202 on the outer surface can buffer impact; the mounting groove 203 on the back of the edge 201 provides an assembly reference for the LCD screen, and the sliding groove 205, ratchet 206, card 207, and pawl 209 in the mounting base 204 on the top and sides cooperate to stably position and clamp the LCD screen after the card 207 slides, without the need for adhesive strips, which not only strengthens the protection of the screen edge, but also simplifies the assembly process and facilitates subsequent maintenance.

[0026] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The card 207 is designed in an L-shape, and the protective component 2 is made of engineering plastic. The L-shaped structure of the card 207 allows it to be bent to fit the surface and edge of the LCD screen simultaneously, forming a multi-contact clamping effect. Compared with a straight structure, this improves the clamping stability of the LCD screen and prevents the LCD screen from shifting after assembly. The protective component 2 is made of engineering plastic, which has good structural strength. This ensures that the edge 201 provides stable and reliable support to the screen 1 body 101 and the mounting base 204 provides stable and reliable sliding guidance to the card 207. At the same time, the engineering plastic has a moderate weight, which will not increase the burden on the overall mechanism and avoids affecting the protection and assembly performance due to the material being too brittle or too heavy.

[0027] See Figure 1 , Figure 2 , Figure 3, Figure 4 The anti-collision strip 202 is made of rubber. Rubber itself has good elastic deformation ability. When the edge protection 201 is subjected to external collision or impact, the rubber anti-collision strip 202 can absorb the energy generated by the impact through its own elastic deformation, converting the concentrated external force into deformation potential energy, and preventing the external force from being directly transmitted to the edge of the main body 101 of the screen 1. The wear resistance of the rubber material can also extend the service life of the anti-collision strip 202. Combined with its arrangement along the outer surface of the edge protection 201, it forms a continuous buffer protection layer, which can better buffer various impacts and reduce the probability of screen edge damage and cracking compared to rigid protection structures.

[0028] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The bottom of the main body 101 is provided with a terminal block 102. The wiring structure is arranged in the non-protected core area of ​​the screen 1, which can avoid spatial interference with the key protection and clamping structures such as the edge 201 and the mounting base 204 of the protective component 2. This ensures that the overall structural layout of the protective mechanism is reasonable and does not affect the surrounding protection of the edge 201 and the clamping effect of the card 207. The bottom layout provides more operating space for the terminal block 102, allowing staff to easily connect to external circuits. When the screen 1 or LCD screen needs to be repaired later, the wiring position at the bottom is also easy to quickly disassemble and reconnect, ensuring the stability of signal transmission and the convenience of maintenance.

[0029] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The pawl 209 remains engaged with the ratchet 206 under the force of the torsion spring. The card 207 achieves positioning after sliding through the cooperation of the pawl and the ratchet. The pawl 209 is rotatably connected to the pressure plate groove 208 of the card 207 through the torsion spring. The elastic force of the torsion spring can continuously provide the pawl 209 with the force to adhere to the ratchet 206, keeping it in an engaged state and preventing disengagement due to vibration or slight external force. This engagement allows the card 207 to slide along the slide groove 205 to the clamping position that fits the LCD screen, and then automatically achieve positioning and locking without the need for an additional locking structure, simplifying the complexity of the clamping mechanism. At the same time, this engagement positioning method allows the card 207 to flexibly adjust the clamping position according to the thickness of the LCD screen, making it more adaptable to assembly. During maintenance, the card can be slid out of engagement to slide, making operation convenient.

[0030] See Figure 1 , Figure 2 , Figure 3 , Figure 4The edge protector 201 is arranged around the edge of the main body 101. The inner wall of the mounting groove 203 fits snugly against the edge of the LCD screen. The edge protector 201 can cover the top, bottom and side edges of the main body 101, forming all-round protection. It avoids the edge protection blind spots that exist in traditional non-surround protection. No matter which direction the external force impacts the edge of the screen, it can be blocked by the edge protector 201. The inner wall of the mounting groove 203 on the back of the edge protector 201 fits snugly against the edge of the LCD screen. When the LCD screen is embedded, it can be quickly aligned by the groove wall. Initial positioning can be completed without the need for external positioning tools, which effectively reduces the position deviation during the assembly process. It provides a stable reference for the precise clamping of the card 207 on the mounting base 204, and improves the overall assembly efficiency and assembly accuracy.

[0031] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The anti-collision strip 202 extends continuously along the outer surface of the edge guard 201. The outer surface of the anti-collision strip 202 has an arc-shaped transition structure. The continuous extension of the anti-collision strip 202 along the outer surface of the edge guard 201 can form a complete buffer protection layer on the entire outer surface of the edge guard 201, eliminating the local weak points that may be caused by intermittent arrangement, and ensuring that every part of the edge of the screen 1 main body 101 is protected against collisions. The outer surface of the anti-collision strip 202 adopts an arc-shaped transition structure. When subjected to external collisions, the arc-shaped surface can change the direction of force transmission, dispersing the impact force concentrated on a certain point to the periphery of the anti-collision strip 202, avoiding stress concentration that may cause damage to the edge guard 201 or the anti-collision strip 202. Combined with the elastic deformation of the rubber material, it forms a dual protection of "dispersion + buffering", improving the anti-collision effect.

[0032] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The mounting base 204 and the edge protector 201 are integrally molded structures. The extension direction of the slide groove 205 is perpendicular to the opening direction of the mounting slot 203. The integral molding structure of the mounting base 204 and the edge protector 201 completely eliminates the assembly gap between the two compared with the spliced ​​structure, improves the structural strength of the connection part, and can effectively withstand the force generated when the card 207 slides, preventing the connection between the mounting base 204 and the edge protector 201 from loosening after long-term use, and ensuring the stability of the clamping mechanism. The extension direction of the slide groove 205 in the mounting base 204 is perpendicular to the opening direction of the mounting slot 203. After the LCD screen is embedded in the mounting slot 203, the clamping force generated by the card 207 sliding along the slide groove 205 is perpendicular to the embedding direction of the LCD screen, forming a clamping force perpendicular to the surface of the LCD screen. This clamping method can more firmly fix the LCD screen in the mounting slot 203 and prevent the LCD screen from shifting in the embedding direction or horizontal direction.

[0033] The implementation principle of this embodiment is as follows: First, the basic structural relationship between the screen 1 and the protective component 2 is clarified. The outer side of the main body 101 of the screen 1 and the protective component 2 are set as an integral structure. The protective edge 201 of the protective component 2 is arranged around the edge of the main body 101. The outer surface of the protective edge 201 is provided with a continuously extending arc-shaped transition rubber anti-collision strip 202. This integral structure and surrounding layout can avoid protective gaps and provide a comprehensive protective foundation for the edge of the screen 1.

[0034] Next, the capacitive touchscreen and the LCD screen are assembled and positioned. The edge of the LCD screen is fitted into the mounting groove 203 on the back of the edge protector 201. The initial positioning of the two is completed by utilizing the fitting characteristics between the inner wall of the mounting groove 203 and the edge of the LCD screen. Subsequently, a clamping structure is used to achieve stable fixation. Since the mounting base 204 and the edge protector 201 are integrally formed, and the extension direction of the sliding groove 205 in the mounting base 204 is perpendicular to the opening direction of the mounting groove 203, the L-shaped card 207 is pushed to slide along the sliding groove 205, so that the card 207 fits against the surface of the LCD screen. During the sliding process, the pawl 209 connected by a torsion spring in the pressure plate groove 208 at the top of the card 207 is always engaged with the ratchet 206 on the lower inner side of the slide groove 205 under the force of the torsion spring. When the card 207 slides to the clamping position that fits the LCD screen, the engagement relationship between the pawl 209 and the ratchet 206 directly achieves the positioning and locking of the card 207, thereby forming a reliable clamping of the LCD screen without relying on adhesive strips. When the clamping structure needs to be unlocked for repair or replacement of the LCD screen, press the pawl 209 into the pressure plate groove 208. The pressing force overcomes the elastic force of the torsion spring, causing the pawl 209 to rotate around its rotational connection point with the pressure plate groove 208 until the pawl 209 disengages from the ratchet 206. At this time, the positioning restriction of the card 207 is released, and it can slide in the opposite direction along the slide groove 205, disengaging from the surface of the LCD screen, thus releasing the clamping of the LCD screen and removing the LCD screen from the mounting groove 203. After repair or replacement, repeat the above assembly and clamping steps to re-fix it. When the device is subjected to external collisions or impacts, the rubber anti-collision strip 202 on the outer surface of the edge protector 201 effectively buffers and disperses the impact force due to the elasticity of the rubber material and the arc transition structure. Combined with the wrapping effect of the surrounding edge protector 201, it prevents external forces from directly acting on the edge of the main body 101, thus avoiding damage and cracking. At the same time, the terminal block 102 at the bottom of the main body 101 of the screen 1 is used to connect to external circuits, ultimately completing the assembly, fixing, unlocking, maintenance, protection, and functional adaptation of the device.

[0035] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A protective mechanism for a capacitive touchscreen, characterized in that: It includes a screen (1) and a protective component (2). The screen (1) includes a main body (101), and the outer side of the main body (101) and the protective component (2) are integrated into one structure. The protective component (2) includes a guard edge (201), an anti-collision strip (202) is provided on the outer surface of the guard edge (201), a mounting groove (203) for mounting the LCD screen is provided on the back of the guard edge (201), a mounting seat (204) is provided on the top and both sides of the guard edge (201), a sliding groove (205) is provided in the mounting seat (204), a ratchet (206) is provided on the lower inner side of the sliding groove (205), a card (207) for clamping the LCD screen is slidably connected in the sliding groove (205), a pressure plate groove (208) is passed through the top of the card (207), and a pawl (209) that meshes with the ratchet (206) is rotatably connected in the pressure plate groove (208) by a torsion spring.

2. The protective mechanism for the capacitive touchscreen according to claim 1, characterized in that: The card (207) is arranged in an L-shape, and the protective component (2) is made of engineering plastic.

3. The protective mechanism for the capacitive touchscreen according to claim 1, characterized in that: The anti-collision strip (202) is made of rubber.

4. The protective mechanism for the capacitive touchscreen according to claim 1, characterized in that: A terminal block (102) is provided at the bottom of the main body (101).

5. The protective mechanism for the capacitive touchscreen according to claim 1, characterized in that: The pawl (209) remains engaged with the ratchet (206) under the force of the torsion spring, and the card (207) achieves positioning after sliding through the cooperation of the pawl and the ratchet.

6. The protective mechanism for the capacitive touchscreen according to claim 1, characterized in that: The edge guard (201) is arranged around the edge of the main body (101), and the inner wall of the mounting groove (203) fits snugly against the edge of the LCD screen.

7. The protective mechanism for a capacitive touchscreen according to claim 1, characterized in that: The anti-collision strip (202) extends continuously along the outer surface of the guard edge (201), and the outer surface of the anti-collision strip (202) has an arc-shaped transition structure.

8. The protective mechanism for the capacitive touchscreen according to claim 1, characterized in that: The mounting base (204) and the edge guard (201) are integrally formed structures, and the extension direction of the slide groove (205) is perpendicular to the opening direction of the mounting groove (203).

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