An LCD liquid crystal display module

Abstract

The present invention belongs to the technical field of liquid crystal display screens, and particularly relates to an LCD liquid crystal display module, including an LCD liquid crystal display module, which includes a housing. An installation bracket is connected to the lower side wall of the housing. A backlight plate, an LCD liquid crystal layer, a color filter film, and a glass cover plate are provided inside the housing. A PLC controller is fixedly connected to the upper side wall of the housing. When the present invention uses the LCD liquid crystal display module outdoors and hail falls outdoors, it can timely protect the entire LCD liquid crystal module, thereby avoiding the problem that the LCD liquid crystal display screen is damaged due to the impact of hail, improving the protection ability of the LCD liquid crystal display module. And when using the LCD liquid crystal display module outdoors, during the cleaning process after the device is idle, a brand-new cleaning cloth can be used all the time, avoiding the problem that the traditional continuous use of a single cleaning cloth will scratch the LCD liquid crystal display screen due to foreign objects remaining on the surface of the cleaning cloth.

Description

Technical Field

[0001] The present invention belongs to the technical field of liquid crystal display screens, and particularly relates to an LCD liquid crystal display module. Background Art

[0002] The LCD liquid crystal display screen utilizes the characteristics of liquid crystal molecules to control the transmission and blocking of light, thereby realizing the display of images and texts. Liquid crystal is a substance between solid and liquid, with unique optical properties. Without applying electricity, liquid crystal molecules are arranged according to a certain rule, and light can pass through; when an electric field is applied to the liquid crystal molecules, their arrangement direction will change, thereby blocking or changing the propagation direction of light. By controlling the states of liquid crystal molecules at different positions, different pixels can be formed, and then an image can be composed. For example, a kind of eye-protecting TFT-LCD liquid crystal display module proposed in the patent publication number CN107300796A.

[0003] Existing LCD liquid crystal display modules are widely used for advertising displays due to their excellent display effects, strong stability and durability, high cost-effectiveness and high flexibility. And in order to improve the display effect, some LCD liquid crystal display modules are set outdoors. In some areas of our country where strong convective weather occurs frequently, in such areas, strong solar radiation causes the ground air to rapidly heat up and expand upward, forming a strong convective column. Under the strong convective action, the water vapor in the clouds is likely to form hail. The impact of hail may directly cause the LCD liquid crystal display screen to break, and at the same time, it will also cause the shell to have dents, deformations or damages. This not only affects the beauty of the LCD liquid crystal display screen, but may also cause the internal electronic components to be squeezed or exposed to the external environment, further damaging the equipment.

[0004] Therefore, an LCD liquid crystal display module is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an LCD liquid crystal display module for the above problems.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions: An LCD liquid crystal display module, including a housing, an installation bracket is connected to the lower side wall of the housing, a backlight plate, an LCD liquid crystal layer, a color filter film and a glass cover plate are arranged inside the housing, a PLC controller is fixedly connected to the upper side wall of the housing, and further includes:

[0007] A protection component, arranged on the upper side wall of the housing, for protecting the housing and internal components;

[0008] A triggering component, arranged on the upper side wall of the protection component, for sensing the foreign object impact situation above the housing;

[0009] The cleaning component is arranged on the rear side wall of the shell and is used for cleaning dust on the surface of the glass cover plate.

[0010] Preferably, the protective assembly includes a support seat fixedly connected to the upper side wall of the shell, the outer wall of the support seat is fixedly sleeved with a first protective cover, the outer sliding sleeve of the first protective cover is provided with a second protective cover, the outer sleeve of the second protective cover is provided with a third protective cover, the left side wall of the support seat is fixedly connected to an electric roller, the outer side of the electric roller is fixedly wrapped with a pull rope, the inner wall of the third protective cover is fixedly connected to a lifting plate, and the lower end of the pull rope is fixedly connected to the upper side wall of the lifting plate.

[0011] Preferably, the trigger assembly includes a connecting seat fixedly connected to the upper side wall of the support seat, the upper side wall of the connecting seat is fixedly connected to a trigger plate, the upper side wall of the trigger plate is fixedly connected to the same trigger cover through two springs, the upper side wall of the trigger plate is fixedly connected to a trigger switch, and the trigger switch is electrically connected to the PLC controller.

[0012] Preferably, the cleaning component includes an electric slide rail fixedly connected to the rear side wall of the shell, the moving end of the electric slide rail is connected to a bent pipe through a detection component, the bent pipe is an inverted L-shaped structure, the pipe wall fixed sleeve at the right end of the bent pipe is provided with a cleaning cover, the right end of the bent pipe is connected to the front inner wall of the cleaning cover, the part of the bent pipe located inside the cleaning cover is connected to a plurality of nozzles, the left side wall of the shell is fixedly connected to a water tank, the rear side wall of the water tank is fixedly connected to a micro water pump, the water outlet end of the micro water pump is connected to a hose, the rear end of the hose is connected to the bent pipe, and the cleaning cover A control cover is fixedly connected to the inner wall on the rear side, and a feeding roller and a receiving roller are rotatably connected between the control cover and the cleaning cover, a receiving motor is fixedly connected to the inner wall of the control cover, and the output end of the receiving motor is fixedly connected to the rear end of the receiving roller, a feeding motor is fixedly connected to the inner wall on the rear side of the cleaning cover, and the output end of the feeding motor is transmission-connected to the feeding roller through an induction component, a guide rod and a pushing roller are fixedly connected to the inner wall of the cleaning cover, a cleaning cloth is wrapped around the outside of the feeding roller, and the lower end of the cleaning cloth passes through the guide rod and the pushing roller, and is fixedly connected to the outer wall of the receiving roller.

[0013] Preferably, the induction component includes an induction cylinder rotatably connected to the rear end of the discharge roller, the output end of the discharge motor is connected to the induction cylinder, the rear end of the discharge roller passes through a control cover, the upper and lower sides of the discharge roller located in the induction cylinder are fixedly connected with rotating plates, the left and right sides of the induction cylinder are fixedly connected with fixed plates, the same spring is fixedly connected between the fixed plate and the rotating plate on one side, the upper end of the rotating plate on the upper side is fixedly connected with an induction block, the induction block is electrically connected to an external power supply, the inner wall of the induction cylinder is inlaid with an induction plate, the induction plate is an arc-shaped structure, and the induction plate is electrically connected to the discharge motor.

[0014] Preferably, the detection component includes a detection cylinder fixedly connected to the moving end of the electric slide rail, the lower inner wall of the detection cylinder is fixedly connected to a detection block through a spring, the lower side wall of the detection block is fixedly connected to an electric contact block, the electric contact block is electrically connected to an external power supply, the inner wall of the detection cylinder is inlaid with an electric contact plate, the electric contact plate is electrically connected to a PLC controller, the rear side wall of the detection block is fixedly connected to a lifting plate, the rear end of the lifting plate passes through the detection cylinder and is fixedly connected to the bent pipe.

[0015] Preferably, a wiper frame is fixedly connected to the front side wall of the control cover, and wiper blocks are fixedly connected to the upper and lower inner walls of the wiper frame, and the longitudinal section of the wiper block is a triangular structure.

[0016] Preferably, a right side wall of the shell is fixedly connected with a storage frame, and the cleaning cover is located in the storage frame.

[0017] Compared with the existing technology, the advantages of an LCD liquid crystal display module are:

[0018] 1. By setting the protective components and trigger components, when the LCD liquid crystal display module is used outdoors and hail falls outdoors, the entire LCD liquid crystal display module can be protected in time, thereby avoiding the problem of the LCD liquid crystal display module being damaged due to the impact of hail, and improving the protection capability of the LCD liquid crystal display module.

[0019] 2. Through the set cleaning component, when the LCD liquid crystal display module is used outdoors, the dust on the surface of the LCD liquid crystal display module can be automatically cleaned after the equipment is idle, and a new cleaning cloth is always used during the cleaning process, avoiding the traditional problem of continuously using a cleaning cloth, which will cause the LCD liquid crystal display screen to be scratched by foreign objects remaining on the surface of the cleaning cloth.

[0020] 3. Through the detection component, after the LCD liquid crystal display module is cleaned and contacted, the scratches on its surface can be automatically detected. When a large number of scratches are detected on the surface of the LCD liquid crystal display module, the operator can be reminded in time to replace the protective glass on the surface of the LCD liquid crystal display module to ensure that the LCD liquid crystal display module has an excellent display picture. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an LCD liquid crystal display module provided by the present invention;

[0022] Figure 2 It is a structural schematic diagram of a first protective cover, a second protective cover and a third protective cover in an LCD liquid crystal display module provided by the present invention when they are stored;

[0023] Figure 3 It is a schematic structural diagram of a triggering component in an LCD liquid crystal display module provided by the present invention;

[0024] Figure 4 It is a schematic internal structure diagram of a housing in an LCD liquid crystal display module provided by the present invention;

[0025] Figure 5 It is a top view of a housing in an LCD liquid crystal display module provided by the present invention;

[0026] Figure 6 It is a schematic internal structure diagram of a cleaning cover in an LCD liquid crystal display module provided by the present invention;

[0027] Figure 7 It is a schematic internal structure diagram of a water scraping frame in an LCD liquid crystal display module provided by the present invention;

[0028] Figure 8 It is a schematic internal structure diagram of a control cover in an LCD liquid crystal display module provided by the present invention;

[0029] Figure 9 It is a schematic structural diagram of a sensing component in an LCD liquid crystal display module provided by the present invention;

[0030] Figure 10 It is a schematic structural diagram of a detection component in an LCD liquid crystal display module provided by the present invention.

[0031] In the figure: 1 housing, 2 backlight plate, 3 LCD liquid crystal layer, 4 color filter film, 5 glass cover plate, 6 PLC controller, 7 protection component, 71 support seat, 72 first protection cover, 8 second protection cover, 9 third protection cover, 10 electric rotating roller, 11 pull rope, 12 lifting plate, 13 triggering component, 131 connecting seat, 132 triggering plate, 14 triggering cover, 15 triggering switch, 16 cleaning component, 161 electric slide rail, 162 elbow pipe, 17 cleaning cover, 18 nozzle, 19 water tank, 20 micro water pump, 21 hose, 22 control cover, 23 feeding roller, 24 winding roller, 25 winding motor, 26 feeding motor, 27 guide rod, 28 pushing roller, 29 cleaning cloth, 30 sensing component, 301 sensing cylinder, 302 rotating plate, 31 fixing plate, 32 sensing block, 33 sensing plate, 34 detection component, 341 detection cylinder, 342 detection block, 35 electric contact block, 36 electric contact plate, 37 lifting plate, 38 water scraping frame, 39 water scraping block, 40 storage frame. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0033] As Figures 1 - 10 shown, an LCD liquid crystal display module includes a housing 1. An installation bracket is connected to the lower side wall of the housing 1. A backlight plate 2, an LCD liquid crystal layer 3, a color filter film 4, and a glass cover plate 5 are provided inside the housing 1. A PLC controller 6 is fixedly connected to the upper side wall of the housing 1. It further includes:

[0034] A protection component 7, which is arranged on the upper side wall of the housing 1 and is used for protecting the housing 1 and the internal components;

[0035] A triggering component 13, which is arranged on the upper side wall of the protection component 7 and is used for sensing the foreign object impact situation above the housing 1;

[0036] A cleaning component 16, which is arranged on the rear side wall of the housing 1 and is used for cleaning the dust on the surface of the glass cover plate 5.

[0037] The protection component 7 includes a support seat 71 fixedly connected to the upper side wall of the housing 1. A first protective cover 72 is fixedly sleeved on the outer wall of the support seat 71. A second protective cover 8 is slidably sleeved on the outside of the first protective cover 72. A third protective cover 9 is sleeved on the outside of the second protective cover 8. A motorized roller 10 is fixedly connected to the left side wall of the support seat 71. A pull rope 11 is fixedly wound around the outside of the motorized roller 10. A lifting plate 12 is fixedly connected to the inner wall of the third protective cover 9. The lower end of the pull rope 11 is fixedly connected to the upper side wall of the lifting plate 12. The triggering component 13 includes a connecting seat 131 fixedly connected to the upper side wall of the support seat 71. A triggering plate 132 is fixedly connected to the upper side wall of the connecting seat 131. The upper side wall of the triggering plate 132 is fixedly connected to the same triggering cover 14 through two springs. A triggering switch 15 is fixedly connected to the upper side wall of the triggering plate 132. The triggering switch 15 is electrically connected to the PLC controller 6. When the LCD liquid crystal display module is used outdoors and it hails outdoors, it can timely protect the whole LCD liquid crystal module, thus avoiding the problem that the LCD liquid crystal display screen is damaged due to the impact of hail and improving the protection ability of the LCD liquid crystal display module.

[0038] The cleaning component 16 includes an electric slide rail 161 fixedly connected to the rear side wall of the shell 1, and the moving end of the electric slide rail 161 is connected to a bend pipe 162 through a detection component 34. The bend pipe 162 is an inverted L-shaped structure. The tube wall fixed sleeve at the right end of the bend pipe 162 is provided with a cleaning cover 17. The right end of the bend pipe 162 is connected to the front inner wall of the cleaning cover 17. The part of the bend pipe 162 located inside the cleaning cover 17 is connected to a plurality of nozzles 18. The left side wall of the shell 1 is fixedly connected to a water tank 19, and the rear side wall of the water tank 19 is fixedly connected to a micro water pump 20. The water outlet end of the micro water pump 20 is connected to a hose 21, and the rear end of the hose 21 is connected to the bend pipe 162. The rear inner wall of the cleaning cover 17 is fixedly connected to a control cover 22, and a discharge roller 23 and a collection roller 24 are rotatably connected between the control cover 22 and the cleaning cover 17. The inner wall of the control cover 22 is fixedly connected to a collection motor 25. The output end of the receiving motor 25 is fixedly connected to the rear end of the receiving roller 24. The inner wall of the rear side of the cleaning cover 17 is fixedly connected with a feeding motor 26. The output end of the feeding motor 26 is transmission-connected to the feeding roller 23 through the induction component 30. The inner wall of the cleaning cover 17 is fixedly connected with a guide rod 27 and a push roller 28. A cleaning cloth 29 is wrapped around the feeding roller 23. The lower end of the cleaning cloth 29 passes through the guide rod 27 and the push roller 28 and is fixedly connected to the outer wall of the receiving roller 24. When the LCD liquid crystal display module is used outdoors, the dust on the surface of the LCD liquid crystal display module can be automatically cleaned after the equipment is idle, and in the cleaning process, a new cleaning cloth 29 is always used, avoiding the problem of scratching the LCD liquid crystal display screen due to foreign matter remaining on the surface of the cleaning cloth 29 due to the traditional continuous use of a piece of cleaning cloth 29.

[0039] The induction assembly 30 includes an induction cylinder 301 rotatably connected to the rear end of the feeding roller 23, the output end of the feeding motor 26 is connected to the induction cylinder 301, the rear end of the feeding roller 23 passes through the control cover 22, the feeding roller 23 is located in the induction cylinder 301, and the upper and lower sides are fixedly connected with rotating plates 302, the left and right sides of the induction cylinder 301 are fixedly connected with fixed plates 31, the same spring is fixedly connected between the fixed plate 31 and the rotating plate 302 on one side, the upper end of the upper rotating plate 302 is fixedly connected with a sensing block 32, the sensing block 32 is electrically connected to an external power supply, the inner wall of the sensing cylinder 301 is inlaid with a sensing plate 33, the sensing plate 33 is an arc-shaped structure, the sensing plate 33 is electrically connected to the feeding motor 26, so that the cleaning cloth 29 can always be kept in a relatively tight state, thereby ensuring the wiping ability of the cleaning cloth 29.

[0040] The detection component 34 includes a detection cylinder 341 fixedly connected to the moving end of the electric slide rail 161, the lower inner wall of the detection cylinder 341 is fixedly connected to the detection block 342 through a spring, the lower side wall of the detection block 342 is fixedly connected to the electric contact block 35, the electric contact block 35 is electrically connected to the external power supply, the inner wall of the detection cylinder 341 is inlaid with an electric contact plate 36, the electric contact plate 36 is electrically connected to the PLC controller 6, the rear side wall of the detection block 342 is fixedly connected to the lifting plate 37, the rear end of the lifting plate 37 passes through the detection cylinder 341, and is fixedly connected to the curved pipe 162. After cleaning the LCD liquid crystal display module, the scratches on its surface can be automatically detected. When it is detected that there are many scratches on the surface of the LCD liquid crystal display module, the operator can be promptly reminded to replace the protective glass on the surface of the LCD liquid crystal display module to ensure that the LCD liquid crystal display module has an excellent display picture.

[0041] The front side wall of the control cover 22 is fixedly connected to a wiper frame 38, and the upper and lower inner walls of the wiper frame 38 are fixedly connected to wiper blocks 39. The longitudinal section of the wiper block 39 is a triangular structure, which can clean up the accumulated water on the surface of the cleaning cloth 29 after use.

[0042] A storage frame 40 is fixedly connected to the right side wall of the housing 1 , and the cleaning cover 17 is located in the storage frame 40 . When the cleaning cover 17 is not in use, the cleaning cover 17 can be placed in the storage frame 40 for storage.

[0043] The operating principle of the present invention is now described as follows: when the LCD liquid crystal display module is used outdoors and hail falls outdoors, the hail will hit the surface of the trigger cover 14 during the falling process, and the trigger cover 14 will squeeze the trigger switch 15 downward once, and the trigger switch 15 will transmit an electrical signal to the PLC controller 6. After receiving the electrical signal, the PLC controller 6 will immediately control the electric roller 10 to work for a set time. During the rotation process, the electric roller 10 will lower the pull rope 11 wrapped around the surface, so that the third protective cover 9 at the bottom is released from the limit, and the third protective cover 9 The first protective cover 72 and the second protective cover 8 will continue to fall under the action of gravity. When the electric roller 10 stops working, the third protective cover 9 will fall to the bottom, and the third protective cover 9 will be stuck at the outer edge of the lower end of the second protective cover 8, and the second protective cover 8 will be stuck at the outer edge of the lower end of the first protective cover 72. Through the cooperation of the first protective cover 72, the second protective cover 8 and the third protective cover 9, the LCD liquid crystal module in the outdoors is protected, thereby avoiding the problem of LCD liquid crystal display module being damaged due to the impact of hail, and improving the protection ability of the LCD liquid crystal display module;

[0044] When the LCD liquid crystal display module stops working late at night, the PLC controller 6 will control the electric slide rail 161 and the micro water pump 20 to work simultaneously. The micro water pump 20 will transport the water inside the water tank 19 to the elbow 162 through the hose 21 and spray it out through the nozzle 18, so that the liquid is sprayed onto the surface of the cleaning cloth 29. The electric slide rail 161 will drive the detection cylinder 341 to move downward together. During the downward movement of the detection cylinder 341, it will squeeze the detection block 342 through the inner wall, drive the lifting plate 37 and the elbow 162 to move downward together through the detection block 342. The elbow 162 will drive the cleaning cover 17 and the cleaning cloth 29 to move downward together, and use the wet cleaning cloth 29 to clean the dust on the surface of the LCD liquid crystal display module. And during the downward movement of the cleaning cover 17, the PLC controller 6 will control the material receiving motor 25 to work. The material receiving motor 25 will drive the material receiving roller 24 to rotate, and use the material receiving roller 24 to wind up the cleaning cloth 29, and wind up the wiped cleaning cloth 29 onto the surface of the material receiving roller 24, avoiding the problem that the foreign matter on the surface residue of the cleaning cloth 29 will scratch the LCD liquid crystal display screen. When the winding roller winds up the cleaning cloth 29, the cleaning cloth 29 will drive the feeding roller 23 to rotate together. The feeding roller 23 will drive the two rotating plates 302 inside to rotate together. The upper rotating plate 302 will drive the induction block 32 to rotate during the rotation process. The induction block 32 will contact the induction plate 33 during the rotation process. The induction block 32 is electrically connected to the external power supply, and the induction plate 33 is electrically connected to the feeding motor 26. When the induction block 32 contacts the induction plate 33, it will transmit the current to the feeding motor 26. The feeding motor 26 will drive the induction cylinder 301 to rotate, so that the feeding roller 23 rotates together with the material receiving roller 24. And only when the cleaning cloth 29 is in a tightened state, the feeding roller 23 and the material receiving roller 24 will rotate together, ensuring the tightened state of the cleaning cloth 29 during use and making the cleaning cloth 29 maintain good cleaning performance;

[0045] When the electric slide 161 drives the cleaning cover 17 to move downward to the bottom, the PLC controller 6 will control the electric slide 161 to drive the cleaning cover 17 to move upward. At the same time, the PLC controller 6 will control the material receiving motor 25 to stop working, and control the induction block 32 to disconnect from the external power supply, so that the cleaning cloth 29 stops moving. When the cleaning cover 17 moves upward, the cleaning cover 17 will drive the cleaning cloth 29 to move upward together, and a certain friction will be generated between the cleaning cloth 29 and the LCD liquid crystal display screen. When the surface of the LCD liquid crystal display screen has many scratches due to outdoor human touch or wind and sand scratching, the roughness of the surface of the LCD liquid crystal display screen will increase, and the friction between the cleaning cloth 29 and the LCD liquid crystal display screen will increase. The increased friction force will be transmitted to the detection block 342 through the cleaning cover 17, the bent pipe 162 and the lifting plate 37, so that the detection block 342 overcomes the elastic force of the spring below, drives the electric contact block 35 to move downward and contact the electric contact plate 36, and the electric contact block 35 is electrically connected to the external power supply, and the electric contact plate 36 is electrically connected to the PLC controller 6. When the electric contact block 35 and the electric contact plate 36 are in contact, an electrical signal will be transmitted to the PLC controller 6. After receiving the electrical signal, the PLC controller 6 will control the internal buzzer module to work, and transmit a prompt to the receiving end of the maintenance personnel (the receiving end is a mobile phone, etc.) through the wireless module, reminding the maintenance personnel to promptly inspect the LCD liquid crystal display module with severe surface wear to ensure the display quality of the LCD liquid crystal display module.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An LCD liquid crystal display module, comprising a housing (1), the lower side wall of the housing (1) being connected to a mounting bracket, the interior of the housing (1) being provided with a backlight panel (2), an LCD liquid crystal layer (3), a color filter film (4) and a glass cover plate (5), the upper side wall of the housing (1) being fixedly connected to a PLC controller (6), characterized in that: Also includes: A protection component (7) is arranged on the upper side wall of the housing (1) and is used to protect the housing (1) and internal components; A trigger component (13) is arranged on the upper side wall of the protective component (7) and is used to sense the impact of foreign objects above the housing (1); A cleaning component (16) is arranged on the rear side wall of the housing (1) and is used to clean dust on the surface of the glass cover plate (5). The cleaning component (16) comprises an electric slide rail (161) fixedly connected to the rear side wall of the housing (1). The movable end of the electric slide rail (161) is connected to a curved pipe (162) via a detection component (34). A cleaning cover (17) is provided on the pipe wall fixing sleeve at the right end of the curved pipe (162). A control cover (22) is fixedly connected to the rear inner wall of the cleaning cover (17). The control cover (22) and the cleaning cover (17) are connected to each other. A material discharge roller (23) and a material receiving roller (24) are rotatably connected between the control cover (22), a material receiving motor (25) is fixedly connected to the inner wall of the control cover (22), the output end of the material receiving motor (25) is fixedly connected to the rear end of the material receiving roller (24), a material discharge motor (26) is fixedly connected to the inner wall of the rear side of the cleaning cover (17), the output end of the material discharge motor (26) is transmission-connected to the material discharge roller (23) through the induction component (30), the inner wall of the cleaning cover (17) is fixedly connected to the guide rod (27) and the push roller (28), the material discharge A cleaning cloth (29) is wound around the roller (23), the lower end of the cleaning cloth (29) passes through a guide rod (27) and a push roller (28), and is fixedly connected to the outer wall of the receiving roller (24), the sensing component (30) comprises a sensing cylinder (301) rotatably connected to the rear end of the unwinding roller (23), the output end of the unwinding motor (26) is connected to the sensing cylinder (301), the rear end of the unwinding roller (23) passes through a control cover (22), and the unwinding roller (23) is fixedly connected to a rotating shaft on both the upper and lower sides of the unwinding roller (23) located in the sensing cylinder (301). The sensing cylinder (301) is fixedly connected to a fixed plate (31) on both sides thereof, a spring is fixedly connected between the fixed plate (31) and the rotating plate (302) on one side, a sensing block (32) is fixedly connected to the upper end of the rotating plate (302) on the upper side, the sensing block (32) is electrically connected to an external power supply, an induction plate (33) is inlaid on the inner wall of the sensing cylinder (301), the induction plate (33) is an arc-shaped structure, and the induction plate (33) is electrically connected to a discharge motor (26).

2. The LCD liquid crystal display module according to claim 1, characterized in that: The protective assembly (7) comprises a support seat (71) fixedly connected to the upper side wall of the housing (1); a first protective cover (72) is fixedly sleeved on the outer wall of the support seat (71); a second protective cover (8) is slidably sleeved on the outer side of the first protective cover (72); a third protective cover (9) is sleeved on the outer side of the second protective cover (8); an electric roller (10) is fixedly connected to the left side wall of the support seat (71); a pull rope (11) is fixedly wound around the outer side of the electric roller (10); a lifting plate (12) is fixedly connected to the inner wall of the third protective cover (9); and the lower end of the pull rope (11) is fixedly connected to the upper side wall of the lifting plate (12).

3. The LCD liquid crystal display module according to claim 1, characterized in that: The trigger assembly (13) comprises a connecting seat (131) fixedly connected to the upper side wall of the support seat (71); a trigger plate (132) is fixedly connected to the upper side wall of the connecting seat (131); the upper side wall of the trigger plate (132) is fixedly connected to the same trigger cover (14) via two springs; the upper side wall of the trigger plate (132) is fixedly connected to a trigger switch (15); and the trigger switch (15) is electrically connected to a PLC controller (6).

4. The LCD liquid crystal display module according to claim 1, characterized in that: The curved pipe (162) is of an inverted L-shaped structure; the right end of the curved pipe (162) is connected to the front inner wall of the cleaning cover (17); the portion of the curved pipe (162) located inside the cleaning cover (17) is connected to a plurality of nozzles (18); the left side wall of the housing (1) is fixedly connected to a water tank (19); the rear side wall of the water tank (19) is fixedly connected to a micro water pump (20); the water outlet end of the micro water pump (20) is connected to a hose (21); and the rear end of the hose (21) is connected to the curved pipe (162).

5. The LCD liquid crystal display module according to claim 4, characterized in that: The detection assembly (34) comprises a detection cylinder (341) fixedly connected to the moving end of the electric slide rail (161); the lower inner wall of the detection cylinder (341) is fixedly connected to a detection block (342) via a spring; the lower side wall of the detection block (342) is fixedly connected to an electric contact block (35); the electric contact block (35) is electrically connected to an external power supply; the inner wall of the detection cylinder (341) is inlaid with an electric contact plate (36); the electric contact plate (36) is electrically connected to a PLC controller (6); the rear side wall of the detection block (342) is fixedly connected to a lifting plate (37); the rear end of the lifting plate (37) passes through the detection cylinder (341) and is fixedly connected to the curved pipe (162).

6. The LCD liquid crystal display module according to claim 5, characterized in that: A wiper frame (38) is fixedly connected to the front side wall of the control cover (22), and wiper blocks (39) are fixedly connected to the upper and lower inner walls of the wiper frame (38), wherein the longitudinal section of the wiper block (39) is a triangular structure.

7. The LCD liquid crystal display module according to claim 4, characterized in that: A storage frame (40) is fixedly connected to the right side wall of the housing (1), and the cleaning cover (17) is located inside the storage frame (40).

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