Explosion-proof touch control terminal

Abstract

The utility model discloses an explosion-proof touch control terminal, which is characterized in that a box cover, a box body and a bottom cover form an explosion-proof shell, and the protection grade of each component is ensured to reach IP65 through a sealing structure. The box cover is provided with the capacitive touch screen which is attached to the display screen, and the glass attaching technology is combined, so that touch control stability is guaranteed, and extreme environment interference is effectively resisted. The built-in main control board cooperates with the five safety barriers, intelligent operation and current limiting and voltage stabilizing are achieved, multi-point touch control is supported, and efficient interactive experience is brought. And a plurality of explosion-proof elements such as physical keys and indicating lamps are integrated, so that reliable guarantee is provided for emergency operation. And the explosion-proof gland joint and the grounding bolt at the side part are matched with a triple protection mechanism, so that explosion gas and dust are prevented from invading, and the device adapts to a high-risk environment. The equipment has the characteristics of low power consumption and no fan, has multiple installation modes, can reduce faults, is adaptive to complex scenes, and provides a safe, efficient and stable solution for equipment control in flammable and explosive environments.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of industrial control equipment, concretely relates to an explosion -proof touch control terminal. BACKGROUND

[0002] With the continuous improvement of social productivity, the safety and reliability of industrial equipment control in flammable and explosive high-risk scenes such as petroleum chemical industry, natural gas exploitation, coal mine operation, have become the key to maintain personnel life safety and guarantee production smooth operation. The traditional explosion-proof controller adopts the combination form of physical key and physical explosion-proof box body, and this structure exposes many drawbacks in the long-term use. Entering the present, the capacitive touch screen technology has made a leap, and in the human-computer interaction experience, it has almost realized zero delay, and it is very smooth to use, and the stability has withstood the test of the market. However, the existing explosion-proof touch control terminal has many shortcomings. In the extreme environment of oil pollution and frequent static electricity, the touch component is easily disturbed, leading to touch failure, seriously affecting the timeliness and accuracy of equipment operation.

[0003] The traditional explosion-proof controller device adopts the combination structure of physical key and physical explosion-proof box body, and has many defects:

[0004] 1. In the extreme environment of oil pollution, static electricity and the like, the existing common explosion-proof touch control terminal is prone to touch failure risk, which seriously affects the stability of equipment operation.

[0005] 2. The traditional explosion-proof equipment adopts physical key, and the intelligent degree is low, which cannot meet the modern industrial efficient and intelligent interaction demand.

[0006] 3. The pure digital control equipment lacks physical emergency operation interface, and it is difficult to quickly perform emergency operation in emergency, which has safety hidden danger.

[0007] Therefore, it is necessary to improve the traditional control terminal. UTILITY MODEL CONTENT

[0008] In view of the defects of the prior art, the utility model aims at providing an explosion-proof touch control terminal, which realizes the combination of physical key and capacitive touch screen, supports multi-point touch control, solves the problems of touch failure, low intelligent degree and lack of physical emergency operation interface of the existing explosion-proof touch control terminal in extreme environment through the design of composite explosion-proof structure.

[0009] The utility model discloses a kind of explosion-proof touch control terminals, including explosion-proof shell, which is sequentially connected together from top to bottom by lid, box and bottom cover, the lid, box and bottom cover are all explosion-proof structure, wherein, the side of lid, box is rotatably connected, the edge of lid is equipped with an installation groove, installation groove is opened with the through hole that passes through up and down, the box is frame structure, and it forms mounting cavity after being connected with the bottom cover;

[0010] The lid is provided with a window, and the window is fixed with a capacitive touch screen.

[0011] The lid and the box have a first sealing structure therebetween.

[0012] The box and the bottom cover have a second sealing structure therebetween.

[0013] The control terminal further comprises:

[0014] A display screen is fixed to the cover surface of the lid by a pressing block and a fastening member and is in contact with the capacitive touch screen.

[0015] A plurality of sealing joints are arranged on the side of the box, and each sealing joint is an explosion-proof joint.

[0016] A switching power supply, a plurality of safety barriers for current-limiting voltage stabilization, a main control board for device operation processing and control of the display screen and the capacitive touch screen, and a wiring terminal are arranged in the mounting cavity.

[0017] A thin film key is fixed in the installation groove and is connected to the intrinsically safe end of the plurality of safety barriers through a wire.

[0018] A back plate is fixed to the inner surface of the lid and covers the display screen to form a protection structure.

[0019] A controller is fixed to the back plate, and the controller is connected to the capacitive touch screen and the main control board.

[0020] Further, the plurality of safety barriers have five paths.

[0021] Further, the plurality of safety barriers are sealed by epoxy resin.

[0022] Further, the external cable is connected to the terminal through the corresponding explosion-proof joint.

[0023] Further, the explosion-proof joint is an explosion-proof gland joint.

[0024] Further, the side of the box is further provided with an external grounding bolt, and the external grounding bolt is connected to the ground through a grounding wire.

[0025] Further, the bottom cover is further fixed with an internal grounding bolt, and the internal grounding bolt is connected to the grounding terminal of the terminal through a wire.

[0026] Further, the first sealing structure comprises:

[0027] A first groove is arranged on the cover surface of the box cover, and the first groove is coated with silicone rubber;

[0028] A first sealing ring is embedded in the first groove.

[0029] Further, the second sealing structure comprises:

[0030] A second groove is arranged on the cover surface of the bottom cover, and the second groove is coated with silicone rubber;

[0031] A second sealing ring is embedded in the second groove.

[0032] Further, a plurality of physical buttons are mounted on the box cover, the physical buttons are provided with indicator lights, and each physical button is connected to the main control board through a wire.

[0033] Compared with the prior art, the utility model has the beneficial effects that:

[0034] 1. The explosion-proof touch control terminal has excellent touch stability: the capacitive touch panel adopting the glass bonding technology, combined with the sealing reinforcement measures, effectively avoids the interference of oil stains, static electricity and other extreme environments on the touch operation, greatly improves the stability and reliability of the touch, ensures the smooth operation of the equipment, and reduces the risk of production accidents caused by touch failure. The utility model also has a highly intelligent interactive experience: the capacitive touch screen supports multi-point touch, and cooperates with the operation processing capacity of the main control board to realize efficient and intelligent human-computer interaction. Compared with the low intelligent operation of the traditional physical button, the operator can more conveniently and quickly complete the complex instruction input, significantly improve the industrial production efficiency, and meet the needs of modern industry for intelligent equipment.

[0035] 2. The explosion-proof touch control terminal has perfect emergency operation guarantee: integrated reset, emergency stop and other physical buttons, indicator lights, switches, buzzers, potentiometers and other explosion-proof components, providing reliable physical emergency operation interface for emergency situations. In critical moments, operators can quickly perform emergency operations through these physical buttons, avoiding the inconvenience of digital control devices in emergency situations, and effectively ensuring personnel safety and stable production operation.

[0036] 3. The explosion-proof touch control terminal has excellent explosion-proof and protective performance: composite explosion-proof structure design, using "explosion-proof enclosure + intrinsically safe circuit + sealing reinforcement" triple protection mechanism, combined with explosion-proof sealing joint, grounding bolt and other designs, effectively preventing the intrusion of explosive gas and dust, ensuring the safe operation of the device in flammable and explosive high-risk environments. At the same time, the device protection level reaches IP65, the surface is treated by anodizing, which can adapt to outdoor and other harsh environments, prolonging the service life of the device.

[0037] 4. The explosion-proof touch control terminal has flexible and diverse installation adaptability: various shell structure designs meet the needs of different installation methods such as embedded and bracket types, and various wire outlet directions can better adapt to the installation layout of customers. This flexibility enables the explosion-proof touch control terminal to be widely used in various complex industrial scenarios, improving the versatility and practicality of the device.

[0038] 5. The explosion-proof touch control terminal has low failure operation guarantee: low power consumption and fanless design, reducing device failures caused by fan failures, reducing maintenance costs and downtime, improving device stability and reliability, and providing strong support for continuous industrial production. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 It is a perspective view of the explosion-proof touch control terminal of the utility model.

[0040] Figure 2 It is an explosion diagram of the explosion-proof touch control terminal of the utility model.

[0041] Figure 3 It is an enlarged view of the main control board of the utility model.

[0042] Figure 4 It is an internal structure diagram of the box cover of the utility model.

[0043] Marked in the drawing: sign 1, membrane key 2, box cover 3, capacitive touch screen 4, pressing block 5, display screen 6, back plate 7, copper stud 8, box body 9, main control board 10, external grounding bolt 11, bottom cover 12, controller 13, hexagonal support 14, product nameplate 15, explosion-proof mark 16, physical key 17, first bolt 18, first screw 19, second screw 20, hinge 22, second bolt 23, third bolt 24, sealing joint 25, safety fence 26, switching power supply 27, wiring terminal 28, second groove 31. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, so that the advantages and characteristics of the present application can be more easily understood by those skilled in the art, and the protection scope of the present application can be more clearly and definitely defined. Obviously, the described embodiments of the present application are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0045] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as there is no conflict between them.

[0046] Embodiment 1: The specific structure of the present application is as follows:

[0047] Please refer to the accompanying Figures 1-4 The explosion-proof touch control terminal of the present application comprises an explosion-proof shell, which is sequentially connected together from top to bottom by a box cover 3, a box body 9 and a bottom cover 12, wherein the box cover 3, the box body 9 and the bottom cover 12 are all explosion-proof structures, wherein one side of the box cover 3 and the box body 9 is rotatably connected, the edge of the box cover 3 is provided with a mounting groove, the mounting groove is provided with a through hole penetrating from top to bottom, the box body 9 is a frame-shaped structure, and forms a mounting cavity after being connected with the bottom cover 12.

[0048] The box cover 3 is provided with a window, and the window is fixed with a capacitive touch screen 4, and the connection between the capacitive touch screen 4 and the window is sealed.

[0049] The first sealing structure is arranged between the box cover 3 and the box body 9; the first sealing structure comprises a first groove arranged on the cover surface of the box cover 3 and coated with silicone rubber and a first sealing ring in the first groove, and the first sealing ring is embedded in the first groove.

[0050] The box 9 and the bottom cover 12 have a second sealing structure; the second sealing structure comprises a second groove 31 arranged on the cover surface of the bottom cover 12 and a second sealing ring coated with silicone rubber in the second groove 31.

[0051] The control terminal further comprises:

[0052] A display screen 6 is fixed to the cover surface of the box cover 3 through the pressing block 5 and the fastening member and is in surface contact with the capacitive touch screen 4, and the display screen 6 is a liquid crystal display screen.

[0053] A plurality of sealing joints 25 are arranged on the side of the box 9, and each sealing joint 25 is an explosion-proof joint, and the explosion-proof joint is an explosion-proof gland joint.

[0054] A switching power supply 27, a plurality of safety barriers 26 for current limiting and voltage stabilizing, a main control board 10 for device operation processing and control of the display screen 6 and the capacitive touch screen 4, and a wiring terminal 28 are arranged in the mounting cavity, the switching power supply 27 has a power input end and a power output end, the power input end is connected to the wiring terminal through an electric wire, the power output end is connected to the power input end of the main control board 10 through an electric wire, an external cable is connected to the wiring terminal 28 through the corresponding explosion-proof joint, and the main control board 10 is fixed through the hexagonal support 14.

[0055] A thin film key 2 is fixed in the mounting groove and passes through an intrinsically safe end connected to the plurality of safety barriers 26 through a wire, and a non-intrinsically safe end of the plurality of safety barriers 26 leads out a lead wire connected to a power-on signal pin of the main control board 10.

[0056] A back plate 7 is fixed to the inner surface of the box cover 3 and covers the display screen 6 to form a protection structure.

[0057] A controller 13 is fixed to the back plate 7, the controller 13 is connected to the capacitive touch screen 4 and the main control board 10 respectively, and the controller 13 transmits a control signal generated after processing a capacitive sensing signal to the main control board 10.

[0058] The plurality of safety barriers 26 have five paths, and the plurality of safety barriers 26 are sealed with epoxy resin.

[0059] The side of the box 9 is further provided with an external grounding bolt 11, and the external grounding bolt 11 is connected to the ground through a grounding lead wire.

[0060] The bottom cover 12 is further provided with an internal grounding bolt, and the internal grounding bolt is connected to the grounding terminal of the wiring terminal through an electric wire.

[0061] The box cover 3 is provided with a plurality of physical buttons 17, which are provided with indicator lights, and each physical button 17 is connected to the main control board 10 through an electric wire.

[0062] Embodiment 2:

[0063] The following is the specific processing and installation process of the explosion-proof touch control terminal of the utility model:

[0064] 1. The specific design and structure of the box cover 3: The box cover 3 is made of 6061 aluminum alloy material, is formed by machining, and is subjected to anodic oxidation treatment to enhance corrosion resistance. A 0.5mm-deep recess is arranged at the upper left corner of the front surface of the box cover 3 for pasting an Ex explosion-proof mark 16. A rectangular opening is designed at the center of the box cover 3 as an observation window of the liquid crystal display screen, and this part is regarded as the first step of the box cover 3. A step surface, i.e. the second step, is formed around the back of the rectangular opening, and a 22mm capacitive touch screen 4 is installed at the second step. In order to ensure the sealing between the capacitive touch screen 4 and the box cover 3, a layer of silicone rubber with a thickness of about 1mm is uniformly applied in the capacitive touch screen 4 mounting groove in advance. At the same time, silicone rubber is also filled between the capacitive touch screen 4 and the box cover 3 to maintain the protection level.

[0065] The signal line passes through the rectangular openings at both ends of the back plate 7 and is connected to the input end of the capacitive screen touch controller. The controller 13 is fixed on the back plate 7 through the copper stud 8 and the plastic screw. In order to further improve the waterproof effect, a φ3mm U-shaped notch is opened at the edge of the second step for installing a sealing rubber ring. A plurality of M3*8 threaded holes are arranged on the inner side of the U-shaped notch, which are aligned with the mounting holes of the back plate 7 and are fastened by the first screw 19 (M3*6 cross screw). In addition, two M4 threaded holes are also arranged on the inner side of the second step with a depth of 14mm, which correspond to the M4 threaded mounting holes on the pressing block 5 for further fixing the screen assembly.

[0066] A connector bus bar is arranged on each of the left and right sides of the top of the liquid crystal display screen, which is responsible for video signal and power input. The electric wire passes through the rectangular via hole on the back plate 7 and is connected to the video output interface and power output port of the main control board 10. Two 73mm*2mm notches are symmetrically arranged at the center of the upper end of the box cover 3 for installing the hinge 22, so that the device can be smoothly opened and closed. The hinge 22 is fixed by the second bolt 23. A plurality of M8 through holes are uniformly distributed on the edge of the box cover 3, which correspond to the M8 threaded holes on the box body 9, and the fastening work is completed by using the first bolt 18 (M8*35 internal hexagonal cylindrical head bolt).

[0067] Below the installation window of the liquid crystal display screen, six grooves with a depth of 0.5 mm are symmetrically opened at the center for placing the identification plate 1. Below these grooves are six threaded through holes of M20*1.5 for installing explosion-proof components including physical buttons 17 (such as reset and emergency stop), indicator lights, changeover switches, buzzers, potentiometers, etc. In the lower right corner border area of the box cover 3, there is a groove with a depth of 1.5 mm for installing the membrane switch 2. There is a hole in the center of the groove, and the flexible cable of the membrane switch 2 passes through this hole and is connected to the intrinsically safe end of the five-way safety barrier, while the wire is led out from the non-intrinsically safe end to the power-on signal of the main control board 10, thus realizing the on / off function of the device controlled by the membrane switch 2. On the left side of the backplane 7, four M3 threaded holes are opened, which are specifically designed for installing the five-way safety barrier. To ensure the stability of the internal electronic components, the five-way safety barrier is encapsulated with epoxy resin glue.

[0068] 2. The box body 9 is made of aluminum alloy 6061 and is processed by wire cutting technology. Its outer shape is in the shape of a "square", and the remaining internal rectangular consumables after cutting can be used for secondary processing to reduce the loss of aluminum materials. The surface of the box body 9 is anodized to improve the corrosion resistance. Around the border of the box body 9, several M8 threaded holes are respectively set on the front and back, and the hole depth is 18 mm. Among them, the front threaded holes correspond to the through holes of the above box cover 3, and the back threaded holes correspond to the through holes of the bottom cover 12, and can be used in cooperation with the third bolt 24 (specification: M8*20 cylindrical head hexagon socket bolt) to complete the fastening.

[0069] At the center of the left side of the box body, two hinge installation grooves are opened symmetrically left and right for installing the hinges. At the lower end of the inner cavity border of the box body 9, eight threaded through holes of M20*1.5 are opened symmetrically left and right at the center for installing the explosion-proof gland. The external cable passes through the explosion-proof gland and is connected to the wiring terminal 28 position of the bottom cover 12. On the lower right side of the outer border of the explosion-proof box body, one M6 threaded hole is opened with a depth of 8 mm for installing the external earthing bolt 11, which is connected to the ground through an earthing wire.

[0070] 3. The bottom cover 12 is made of aluminum alloy 6061 material and is formed by machining technology. Its surface is anodized to enhance the corrosion resistance. This design is used for installing and fixing the switching power supply 27, the main control board 10, the wiring terminal 28 and the internal earthing bolt. At the upper left corner position of the front of the bottom cover 12, four M3 threaded through holes are provided, and four second screws 20 are used to fix the switching power supply 27. The left side of the switching power supply 27 is the power input end, which is connected to the wiring terminal 28 through a wire, and the right side is the output end, which is connected to the power input end of the main control board 10 through a wire. At the upper right corner position of the bottom cover 12, six M3 thread through holes are provided. Four of these holes are used to fix the main control board to the bottom cover 12 through M3*6 copper column screws and M3*6 cross recessed bolts; the other two holes are used to install the heat sink on the main control board 10 by using M3*8 cross flat head screws.

[0071] The bottom cover 12 is provided with four M3 threaded through holes below the center, and the terminal is mounted on the bottom cover 12 through M3*6 copper column screws and M3*6 cross slot bolts. M6 threaded through holes are also formed in the lower left corner and the lower right corner, which are used for fixing the bolts for internal grounding and are connected to the terminal through the wires. In order to ensure the sealing of the explosion-proof cavity and prevent moisture and steam from entering the inner cavity, a plurality of M8 through holes are uniformly distributed on the edge of the bottom cover 12 and correspond to the M8 threaded holes on the explosion-proof box body. Each M8 threaded hole is internally provided with a 3mm diameter "U" groove, which is coated with a 0.5mm thick layer of silicone rubber and is provided with an O-shaped sealing ring. The back of the bottom cover 12 is provided with a φ11mm through hole in the up-down and left-right symmetrical directions, which is matched with the M10 threaded hole on the explosion-proof box body and is used in cooperation with the M10 cylindrical head bolt to realize the fastening of the overall structure. In addition, the back of the bottom cover 12 is also provided with a mounting groove reserved for the product nameplate 15 at the top end, and the groove depth is 0.5mm. A layer of silicone rubber with a thickness of about 0.2mm is coated as an adhesive, and then the product nameplate 15 is pasted into the groove.

[0072] In summary, the explosion-proof touch control terminal has excellent touch stability: the capacitive touch panel adopts glass bonding technology, combined with sealing reinforcement measures, effectively avoids the interference of oil stains, static electricity and other extreme environments on touch operation, greatly improves the stability and reliability of touch, ensures smooth operation of equipment, and reduces the risk of production accidents caused by touch failure.

[0073] The explosion-proof touch control terminal has highly intelligent interactive experience: the capacitive touch screen supports multi-point touch, and cooperates with the operation processing capacity of the main control board to realize efficient and intelligent human-computer interaction. Compared with the low intelligent operation of traditional physical keys, the operator can more conveniently and quickly complete complex instruction input, significantly improve industrial production efficiency, and meet the needs of modern industry for intelligent equipment.

[0074] The explosion-proof touch control terminal has perfect emergency operation guarantee: the integrated reset, emergency stop and other physical keys, as well as the indicator light, switch, buzzer and potentiometer, provide reliable physical emergency operation interface for emergency situations. In critical moments, the operator can quickly perform emergency operation through these physical keys, avoiding the problem of inconvenient operation of pure digital control equipment in emergency situations, and effectively guaranteeing the safety of personnel life and stable operation of production.

[0075] The explosion-proof touch control terminal has excellent explosion-proof and protection performance: the composite explosion-proof structure design utilizes the triple protection mechanism of "explosion-proof enclosure + intrinsically safe circuit + sealing reinforcement", combines with the design of explosion-proof sealing joint, grounding bolt and the like, effectively prevents the invasion of explosive gas and dust, and ensures the safe operation of the equipment in the flammable and explosive high-risk environment.

[0076] The explosion-proof touch control terminal has flexible and diverse installation adaptability: various shell structure designs meet the needs of different installation modes such as customer embedded type and support type, and various wire outlet directions can better adapt to the installation layout of customers.

[0077] The explosion-proof touch control terminal has low-failure operation guarantee: low-power consumption and fanless design, reduces the equipment failure caused by fan failure, reduces the equipment maintenance cost and downtime, improves the stability and reliability of the equipment operation, and provides strong support for the continuity of industrial production.

[0078] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation utilizing the content of the utility model specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. An explosion-proof touch control terminal comprising an explosion-proof housing which is connected together in order from top to bottom of a box cover (3), a box body (9) and a bottom cover (12), characterized in that, The box cover (3), the box body (9) and the bottom cover (12) are all explosion-proof structures, wherein one side of the box cover (3) and the box body (9) is rotatably connected, the edge of the box cover (3) is provided with a mounting groove, the mounting groove is provided with a through hole penetrating from top to bottom, the box body (9) is a frame-shaped structure, and the box body (9) and the bottom cover (12) are connected to form a mounting cavity; The box cover (3) is provided with a window, the window is fixed with a capacitive touch screen (4), and the connection between the capacitive touch screen (4) and the window is sealed; The box cover (3) and the box body (9) have a first sealing structure; The box body (9) and the bottom cover (12) have a second sealing structure; The control terminal further comprises: A display screen (6) is fixed to the cover surface of the box cover (3) through a pressing block (5) and a fastening member and is in surface contact with the capacitive touch screen (4); A plurality of sealing joints (25) are arranged on the side of the box body (9), and each sealing joint (25) is an explosion-proof joint; A switching power supply (27), a multi-way safety barrier (26) for current-limiting voltage stabilization, a main control board (10) for device operation processing and control of the display screen (6) and the capacitive touch screen (4), and a wiring terminal (28) are arranged in the mounting cavity, the switching power supply (27) has a power input end and a power output end, the power input end is connected to the wiring terminal through a wire, and the power output end is connected to the power input end of the main control board (10) through a wire; A thin film key (2) is fixed in the mounting groove and connected to the intrinsic safety end of the multi-way safety barrier (26) through a wire, and the non-intrinsic safety end of the multi-way safety barrier (26) is connected to the power-on signal pin of the main control board (10) through a lead wire; A back plate (7) is fixed to the inner surface of the box cover (3) and covers the display screen (6) to form a protection structure; A controller (13) is fixed to the back plate (7), the controller (13) is connected to the capacitive touch screen (4) and the main control board (10), respectively, and the controller (13) transmits a control signal generated after processing a capacitive sensing signal to the main control board (10).

2. The explosion-proof touch control terminal according to claim 1, characterized in that, The multi-way safety barrier (26) has five ways.

3. The explosion-proof touch control terminal according to claim 1, characterized in that, The multi-way safety barrier (26) is sealed by epoxy resin.

4. The explosion-proof touch control terminal according to claim 1, characterized in that, An external cable is connected to the wiring terminal (28) through the corresponding explosion-proof joint.

5. The explosion-proof touch control terminal according to claim 1 or 4, characterized in that, The explosion-proof joint is an explosion-proof gland joint.

6. The explosion-proof touch control terminal according to claim 1, characterized in that, An external grounding bolt (11) is further arranged on the side of the box body (9) and connected to the ground through a grounding wire.

7. The explosion-proof touch control terminal according to claim 1, characterized in that, The bottom cover (12) is further fixed with an internal grounding bolt connected to the grounding terminal of the wiring terminal through a wire.

8. The explosion-proof touch control terminal according to claim 1, characterized in that, The first sealing structure comprises: A first groove is arranged on the cover surface of the box cover (3) and coated with silicone rubber in the first groove; A first sealing ring is embedded in the first groove.

9. The explosion-proof touch control terminal according to claim 1, characterized in that, The second sealing structure comprises: A second groove is arranged on the cover surface of the bottom cover (12) and coated with silicone rubber in the second groove; A second sealing ring is embedded in the second groove.

10. The explosion-proof touch control terminal according to claim 1, characterized in that, The box cover (3) is provided with a plurality of physical buttons (17) provided with indicator lights, and each physical button (17) is connected to the main control board (10) through a wire.

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