Explosion-proof touch screen for flammable and explosive places

Abstract

The invention relates to the technical field of touch screens, and provides an anti-explosion touch screen for flammable and explosive places, which comprises an anti-explosion rear shell, the front side of the anti-explosion rear shell is rotatably connected with an anti-explosion front shell, anti-explosion toughened glass is embedded in the center of the anti-explosion front shell, a non-anti-explosion touch screen body is arranged in the anti-explosion rear shell, and the non-anti-explosion touch screen body is arranged in the anti-explosion rear shell. A nanometer touch circuit film attached to the rear side of the anti-explosion tempered glass is installed on the front side of the non-anti-explosion touch screen body, and the bottom side of the nanometer touch circuit film is electrically connected with a touch control circuit board. A reliable explosion-proof barrier is constructed by completely sealing all electrical elements, such as the nano touch circuit film, the touch control circuit board and the non-explosion-proof touch screen body, which are easy to generate electric sparks in the high-strength explosion-proof shell, and the explosion-proof shell has excellent explosion-proof bearing capacity and is matched with a fastening measure of the explosion-proof bolt, so that the explosion-proof effect is greatly improved. And it is ensured that electrical faults possibly occurring in the interior are completely eradicated.

Description

Technical Field

[0001] This invention relates to the field of touch screen technology, specifically to an explosion-proof touch screen for use in flammable and explosive environments. Background Technology

[0002] A touchscreen, also known as a touch panel or touch screen, is a sensor-based liquid crystal display device that can receive input signals from touch. When a graphical button on the screen is touched, the haptic feedback system drives various connected devices according to a pre-programmed program. It can replace mechanical button panels and create vivid audio-visual effects through the liquid crystal display. As a latest computer input device, the touchscreen is currently the simplest, most convenient, and most natural way for humans to interact with computers. It gives multimedia a brand-new look and is a highly attractive new multimedia interactive device.

[0003] Existing explosion-proof touchscreens for flammable and explosive environments typically consist of a touch film, tempered glass, an LCD screen, and an explosion-proof enclosure. In these solutions, the touch circuit board is directly exposed to the flammable and explosive environment, making it prone to static electricity and attracting flammable and explosive dust. Furthermore, the film is fragile and easily broken by external forces, significantly increasing the probability of sparks during use and potentially causing an explosion. Maintenance is also cumbersome, as the LCD screen requires disassembling an existing non-explosion-proof touchscreen and mounting it within the explosion-proof enclosure. This disrupts the after-sales service guarantees provided by non-explosion-proof touchscreen manufacturers, increasing costs for both explosion-proof manufacturers and customers. Therefore, an explosion-proof touchscreen for flammable and explosive environments is needed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an explosion-proof touchscreen for flammable and explosive environments, solving the problems of easy explosion and inconvenient maintenance.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An explosion-proof touchscreen for use in flammable and explosive environments includes an explosion-proof rear housing, an explosion-proof front housing rotatably connected to the front of the rear housing, an explosion-proof tempered glass embedded in the center of the front housing, a non-explosion-proof touchscreen body disposed inside the explosion-proof rear housing, a nano-touch circuit film that adheres to the back of the explosion-proof tempered glass is mounted on the front of the non-explosion-proof touchscreen body, a touch control circuit board is electrically connected to the bottom of the nano-touch circuit film, the touch control circuit board is connected to the non-explosion-proof touchscreen body via a USB plug, and multiple explosion-proof glands are fixedly connected to the bottom of the explosion-proof rear housing.

[0006] Preferably, the explosion-proof front housing is fixed around its perimeter by a plurality of explosion-proof bolts arranged at equal intervals.

[0007] Preferably, the bottom side of the non-explosion-proof touch screen body is connected to a USB plug via a USB interface.

[0008] Preferably, the screen of the non-explosion-proof touch screen body is an LCD liquid crystal display.

[0009] Preferably, the explosion-proof front housing and the explosion-proof rear housing have an explosion-proof bearing capacity of 1.5MPa to 2.0MPa.

[0010] Preferably, the surface of the explosion-proof tempered glass is coated with a hydrophobic nano-coating to reduce the adhesion of dust to the surface of the explosion-proof tempered glass in the workplace.

[0011] Working principle: By placing all electrical components that are prone to static electricity and electric sparks, including the nano-touch circuit film, non-explosion-proof touch screen body, USB plug and touch control circuit, between the explosion-proof front shell and the explosion-proof rear shell, the explosion-proof front shell is closed and tightened with explosion-proof bolts. The explosion-proof front shell and the explosion-proof rear shell, with an explosion-proof withstand capacity of 1.5MPa to 2.0MPa, protect the internal electrical components and isolate them from the outside world, thereby preventing the generation of static electricity and electric sparks from affecting the outside world. The nano-touch circuit film is attached to the inside of the explosion-proof tempered glass, so that touch operation can generate an electrical signal to the touch circuit film, and the electrical signal can operate the non-explosion-proof touch screen body.

[0012] This invention provides an explosion-proof touchscreen for use in flammable and explosive environments. It offers the following advantages: 1. This invention completely seals all electrical components that are prone to generating electric sparks, such as nano-touch circuit films, touch control circuit boards, and non-explosion-proof touch screen bodies, within a high-strength explosion-proof housing, thus constructing a reliable explosion-proof barrier. The excellent explosion-proof bearing capacity of this explosion-proof housing, combined with the tightening measures of explosion-proof bolts, ensures that any electrical faults that may occur inside are completely eliminated.

[0013] 2. This invention, through its compatibility with USB interfaces, makes the selection, replacement, and after-sales service of non-explosion-proof touchscreen bodies and their LCD display components more convenient. The modular design makes the maintenance of the explosion-proof touchscreen more convenient. Attached Figure Description

[0014] Figure 1 This is a front view of the present invention. Figure 2 This is a side view of the present invention.

[0015] The components include: 1. Explosion-proof front shell; 2. Explosion-proof tempered glass; 3. Nano-touch circuit film; 4. Non-explosion-proof touch screen body; 5. USB plug; 6. Touch control circuit board; 7. Explosion-proof grate; 8. Explosion-proof rear shell. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0017] Please see the appendix Figure 1 and attached Figure 2 This invention provides an explosion-proof touchscreen for flammable and explosive environments, comprising an explosion-proof rear housing 8, with an explosion-proof front housing 1 rotatably connected to the front of the rear housing 8. The explosion-proof front housing 1 is fixed around its perimeter by a plurality of equidistant explosion-proof bolts, allowing it to be securely installed and locked at the desired equipment location, preventing the front housing 1 from opening and exposing the equipment inside the rear housing 8. An explosion-proof tempered glass 2 is embedded in the center of the front housing 1. A non-explosion-proof touchscreen body 4 is disposed inside the rear housing 8. The screen of the non-explosion-proof touchscreen body 4 is an LCD display, and the front of the non-explosion-proof touchscreen body 4 is fitted with an explosion-proof tempered glass 2. The nano-touch circuit film 3 is attached to the back side. By attaching the nano-touch circuit film 3 to the inside of the explosion-proof tempered glass 2, the touch operation can generate an electrical signal to operate the non-explosion-proof touch screen body 4, which ensures both safety and operability. The bottom side of the nano-touch circuit film 3 is electrically connected to the touch control circuit board 6. The touch control circuit board 6 is connected to the non-explosion-proof touch screen body 4 through the USB plug 5. The bottom side of the explosion-proof rear shell 8 is fixedly connected to multiple explosion-proof glands 7. The explosion-proof glands 7 lock and fix the connection points of the connected circuit wires and seal them to prevent the parts of the circuit wires that will generate electric sparks and static electricity from contacting the outside. Only the parts wrapped with the insulating outer layer are left to the outside.

[0018] The bottom side of the non-explosion-proof touch screen body 4 is connected to the USB plug 5 via a USB interface. The non-explosion-proof touch screen body 4 is compatible with the USB interface, allowing its nano-touch circuit film 3 and touch control circuit board 6 to be disconnected from the non-explosion-proof touch screen body 4 at any time for specification replacement. This makes the selection, replacement, and after-sales service of the connected non-explosion-proof touch screen body 4 and its LCD display part more convenient. This modular design also makes the maintenance of the explosion-proof touch screen more convenient.

[0019] By placing all electrical components that are prone to static electricity and electric sparks, including the nano-touch circuit film 3, the non-explosion-proof touch screen body 4, the USB plug, and the touch control circuit board 6, between the explosion-proof front housing 1 and the explosion-proof rear housing 8, and then closing the explosion-proof front housing 1 and tightening it with explosion-proof bolts, the explosion-proof front housing 1 and the explosion-proof rear housing 8, with an explosion-proof withstand capacity of 1.5MPa to 2.0MPa, protect the internal electrical components and isolate them from the outside world, thereby preventing the generation of static electricity and electric sparks from affecting the outside environment.

[0020] The surface of the explosion-proof tempered glass 2 is coated with a hydrophobic nano-coating to reduce the adhesion of dust to the surface of the explosion-proof tempered glass 2 in the workplace. Utilizing the nano-silica technology of the hydrophobic nano-coating, a water contact angle of >90° is formed, making it difficult for dust to adhere and causing it to roll off when it comes into contact with water.

[0021] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof touch screen for use in a flammable or explosive location, characterized in that The device includes an explosion-proof rear housing (8), an explosion-proof front housing (1) is rotatably connected to the front side of the explosion-proof rear housing (8), an explosion-proof tempered glass (2) is embedded in the center of the explosion-proof front housing (1), a non-explosion-proof touch screen body (4) is provided inside the explosion-proof rear housing (8), a nano-touch circuit film (3) is installed on the front side of the non-explosion-proof touch screen body (4) and is attached to the back side of the explosion-proof tempered glass (2), a touch control circuit board (6) is electrically connected to the bottom side of the nano-touch circuit film (3), the touch control circuit board (6) is connected to the non-explosion-proof touch screen body (4) through a USB plug (5), and multiple explosion-proof glands (7) are fixedly connected to the bottom side of the explosion-proof rear housing (8).

2. The explosion-proof touch screen for use in a flammable or explosive location according to claim 1, characterized in that, The explosion-proof front housing (1) is fixed around its perimeter by a plurality of explosion-proof bolts that are equidistantly arranged.

3. The explosion-proof touch screen for use in flammable and explosive places according to claim 1, characterized in that, The bottom side of the non-explosion-proof touch screen body (4) is connected to the USB plug (5) via a USB interface.

4. The explosion-proof touch screen for flammable and explosive places according to claim 1, characterized in that, The screen of the non-explosion-proof touch screen body (4) is an LCD liquid crystal display.

5. The explosion-proof touch screen for flammable and explosive places according to claim 1, characterized in that, The explosion-proof front housing (1) and explosion-proof rear housing (8) have an explosion-proof bearing capacity of 1.5MPa to 2.0MPa.

6. The explosion-proof touch screen for use in flammable and explosive areas according to claim 1, characterized in that, The surface of the explosion-proof tempered glass (2) is coated with a hydrophobic nano-coating to reduce the adhesion of dust to the surface of the explosion-proof tempered glass (2) in the workplace.

Images