Antifouling signboard for construction area

Abstract

The invention belongs to the technical field of propaganda and indication, and particularly relates to an antifouling signboard for a construction area, which comprises a movable house, a cleaning unit is arranged in the movable house, an adjusting unit is arranged at one end of the cleaning unit, and a ventilation unit is arranged on the other side of the outer part of the movable house; according to the invention, the double-sided gear ring and the straight tooth strip are meshed and contacted in the same direction every time, the accumulated interaction depth between the sheet plate and the wedge plate is linearly increased, and the gradient improvement of the interaction force between the glue shovel and the surface of the lamp box is realized after the glue shovel completes the single covering of the surface (display area) of the lamp box, so that the problem that in the traditional scraping method, the glue shovel is difficult to scrape is avoided. And through rigid collision contact between the scraper and the solid particles, the damage probability of the surface of the signboard is reduced, the surface definition of the signboard is ensured, and meanwhile the service life of a signboard glass screen is prolonged.

Description

Technical Field

[0001] The present invention belongs to the technical field of publicity and indication, and particularly relates to an anti-pollution sign for a construction area. Background Art

[0002] The anti-pollution sign for a construction area is a warning sign specifically used for construction sites such as building construction and maintenance. Its purpose is to remind construction workers and surrounding people to pay attention to construction specifications and safety, and ensure that special processes and technical requirements can be strictly implemented. That is, due to the complex construction environment and frequent movement of personnel and equipment, glass screen signs are often used to indicate important information, such as safety warnings, construction area division, or equipment operation instructions, etc.; keeping the surface clean can avoid the occlusion of information by dust, stains, etc., and ensure that construction workers can quickly and accurately read the information at a long distance or under different light conditions, so as to operate according to the sign requirements and reduce safety accidents and operation errors caused by unclear information.

[0003] Temperature differences cause air flow; that is, in a construction site, due to different temperatures in different areas, local airflows are formed. For example, in the area directly irradiated by sunlight, the temperature is relatively high, and the air heats up and rises, while in the shaded area, the temperature is relatively low, and the air has a tendency to flow towards the area with a higher temperature. The aforementioned airflow movement carries solid particles such as dust around, and when passing by the sign (due to the action of static electricity or van der Waals force), the solid particles gradually deposit on the glass screen surface.

[0004] At the same time, substances such as pollen, spores, leaf debris, or animal dander and hair generated by plants around the construction site form smaller particles under the action of natural environmental decomposition, and are dispersed everywhere through air flow, and finally adhere to the glass screen surface of the sign; microorganisms in the environment (such as bacteria, fungi, etc.) will convert them into finer particulate matter during the process of decomposing organic matter. The aforementioned particulate matter is released into the air together with the metabolites of microorganisms, and when it comes into contact with the glass screen of the sign, it will locally adhere to its surface.

[0005] In addition, temperature changes will affect the physical properties of solid particles such as viscosity or surface tension; at high temperatures, the viscosity of some solid particles increases (such as construction material dust, metal corrosion products, and particles generated by chemical reactions, etc.), and the probability of deposition on the surface of glass screen signs increases; at low temperatures, the surface tension of solid particles changes, affecting the accumulation of solid particles, forming larger or smaller particles, which settle on the sign surface.

[0006] To ensure that the information is clear and distinguishable, enhance the warning effect, extend the service life, and meet the requirements of safety specification management, construction workers usually need to regularly clean the signboards. However, during the actual implementation, construction workers usually only use a scraper to scrape and clean the area of the signboard sprayed with cleaning liquid. Due to the difference in viscosity and surface tension between the solid particles attached to the signboard surface and the glass screen, the traditional rigid scraping method has a rigid collision between the scraper and the solid particles, resulting in the destruction of the microscopic structure of the glass screen surface, thereby causing wear and scratches on the glass screen surface. On the one hand, it reduces the aesthetic degree. On the other hand, it increases the surface roughness of the glass screen, improves its accumulation of solid particles such as dust, and affects the display effect and information transmission efficiency of the signboard;

[0007] At the same time, it causes a decrease in transparency, changes the propagation path of light in the glass, and then leads to an increase in light refraction and scattering, affecting the construction workers' recognition of the signboard content and increasing the risk of safety accidents caused by misreading or inability to read the sign information. Summary of the Invention

[0008] To solve the above problems, the present invention adopts the following technical solutions. An anti-fouling signboard for a construction area includes a movable room. A cleaning unit is arranged inside the movable room. An adjusting unit is arranged at one end of the cleaning unit. A ventilation unit is arranged on the other side outside the movable room;

[0009] The adjusting unit includes:

[0010] A central shaft coupler is rotatably installed at one end of one side end face of the movable room;

[0011] A carbon ring is snap-fitted at one end of the central shaft coupler away from the center of the movable room;

[0012] A double-sided toothed ring is coaxially arranged outside the carbon ring and is rotatably connected with the movable room;

[0013] A support is arranged in the space on one side outside the movable room;

[0014] A straight-tooth rack is snap-fitted at one end of the support;

[0015] A wall plate is snap-fitted on the inner wall of the horizontal section of the movable room;

[0016] A slider is slidably snap-fitted in the middle area of the vertical section of the wall plate;

[0017] Two ear seats are a group and are symmetrically snap-fitted on one side end face of the slider;

[0018] A plate is rotatably fitted between the ear seats through a rotating shaft, and a torsion spring is arranged between the plate and the ear seats.

[0019] Preferably, a pawl is rotatably installed on the outer wall of the carbon ring through a rotating shaft and a torsion spring. A stopper is snap-fitted to one end of the pawl close to the axis of the carbon ring. A ball is rotatably installed on the end face of the slider away from the sheet plate. A baffle snap-fitted to the slider is provided on one side of the sheet plate close to the carbon ring. Face rings are snap-fitted to the outer walls at both ends of the sheet plate. End plates are snap-fitted to the outer walls of the face rings. Side position plates are snap-fitted to one end of the wall plate away from the carbon ring. A thimble is inserted and installed at one end of the side position plate away from the wall plate.

[0020] Preferably, a shaft seat is snap-fitted to the outer wall of the horizontal section of the movable house. A port ring is snap-fitted to the outer wall of one end of the shaft seat away from the movable house. Arrow plates are symmetrically snap-fitted to the outer wall of the port ring. A toothed plate is rotatably installed between the arrow plates through a rotating shaft, and a torsion spring is provided between the toothed plate and the arrow plates. A straight rod is inserted into the middle position of the vertical section of the wall plate. A telescopic spring is jointly snap-fitted between one end of the slider away from the carbon ring and the wall plate.

[0021] Preferably, angle bars are symmetrically arranged in the space on one side of the outside of the movable house. Triangular brackets are symmetrically arranged on the outside of the movable house, with a quantity of two, and the triangular brackets are snap-fitted and installed with the angle bars. A light box is snap-fitted to one end of the triangular bracket close to the angle bar.

[0022] Preferably, the cleaning unit includes:

[0023] A panel, snap-fitted to the outer wall of the vertical section on one side of the movable house;

[0024] A slide rail, slidably snap-fitted between the two angle bars, and the panel is snap-fitted to the slide rail; in addition, a support is snap-fitted to one end of the slide rail;

[0025] A water pump, arranged in the space on the side of the panel away from the slide rail, and the water pump is snap-fitted to the outer wall of the movable house;

[0026] A liquid storage bin, snap-fitted to the inner wall of the movable house close to one end of the water pump;

[0027] A spray bin, snap-fitted to one end of the liquid storage bin close to the slide rail;

[0028] Corrugated grooves, at least two, and symmetrically opened on the end face of the spray bin away from the liquid storage bin;

[0029] A water tank, snap-fitted to the inner wall of the movable house at the end away from the water pump;

[0030] A water distribution bin, snap-fitted to one end of the water tank close to the slide rail;

[0031] Nozzles, at least one, and snap-fitted to the end face of the water distribution bin close to the spray bin.

[0032] Preferably, an air pump is snap-fitted onto the end face of the liquid storage bin close to the water tank, an air pipe is snap-fitted onto the end face of the air pump close to the spray bin, there is at least one air pipe, a wind deflector is snap-fitted onto the other end of the air pipe, a wind deflector connected to the air pipe is snap-fitted onto the end face of the wind deflector away from the spray bin, and the opening of the wind deflector faces the wind deflector.

[0033] Preferably, an angle steel beam is clamped and installed on the inner wall of the movable room, a mosaic plate is clamped and installed on the end face of the angle steel beam close to the panel, a node frame is clamped and installed on the end face of the mosaic plate close to the panel, a vertical rod is slidably clamped and installed between the horizontal sections of the node frame, and the number of vertical rods is at least one, a table plate is clamped and installed on the end of the vertical rod away from the spray bin, and the number of table plates is one, a glue shovel is clamped and installed on the end of the vertical rod close to the spray bin, and the number of the glue shovel is an isosceles trapezoid, a column is clamped and installed on the middle position of the end face of the table plate away from the node frame, and a wedge plate is clamped and installed on the middle position of the outer wall of the column.

[0034] Preferably, a gasket is clamped and installed on the outer wall of one end of the vertical rod close to the table, and a sealing ring that is clamped and installed with the same node frame is slidably clamped and installed on the end face of the vertical rod away from the table, and a return spring is clamped and installed between the sealing ring and the gasket.

[0035] Preferably, the ventilation unit comprises:

[0036] The filter bin is mounted on the side of the slide rail away from the mobile house.

[0037] A cooling fan is rotatably installed inside the filter bin, and the number is at least one;

[0038] The decorative panel is installed on the end of the light box near the activity room by sliding and snapping;

[0039] The outer bin is snap-fitted and installed at one end of the light box close to the mobile house, and the decorative panel is plugged and installed with the outer bin; in addition, the outer bin and the decorative panel are connected by a compression spring;

[0040] The ventilation hole is opened at one end of the light box near the mobile house;

[0041] The filter plate is snap-fitted and installed in the middle position inside the vent;

[0042] The roller is arranged inside the vent, and the roller is rotatably mounted with the light box;

[0043] A single-sided gear is mounted on one end of the roller close to the support;

[0044] The single-sided rack is snap-fitted and installed on one end of the support close to the light box.

[0045] Preferably, brushes are symmetrically mounted on the outer wall of the rotating roller, and rubber plates are symmetrically mounted on the outer wall of the rotating roller, and the rubber plates and the brushes are alternately distributed.

[0046] Cleaning method for the surface of glass screen signs in the construction area. The surface protection and cleaning of the anti-fouling signs for the construction area are implemented by using the above method, and the specific steps are as follows:

[0047] S1: First, under the control of the panel of the mobile house, drive the double-sided gear ring to move towards the straight-tooth rack until a certain degree of meshing occurs between the two. At this time, under the limiting action of the double-sided gear ring, the pawl controls the carbon ring to drive the shaft coupling to rotate a certain angle. During this process, through the clamping fit between the shaft coupling and the ball, the slider drives the plate, compresses the wedge plate to drive the column to move a certain distance away from the carbon ring until the rubber scraper is tangent to the surface of the light box;

[0048] S2: Then, control the mobile house to move a specified distance away from the support through the panel, and then control the overall cleaning unit to reciprocate on the surface of the light box through the slide rail until the moving track of the rubber scraper achieves a single coverage of the surface (display area) of the light box. During this process, pump the cleaning liquid stored in the water tank to the water distribution bin through the water pump, and finally flow to the contact working surface between the rubber scraper and the light box through the nozzle;

[0049] S3: Finally, through the re-meshing between the double-sided gear ring and the straight-tooth rack, linearly increase the cumulative interaction depth between the plate and the wedge plate, realize the linear correlation between the contact interaction force between the rubber scraper and the surface of the light box and the number of times of co-directional meshing between the double-sided gear ring and the straight-tooth rack, form a gradient flexible growth of the rubber scraper acting force, break the rigid contact phenomenon between the traditional scraping shovel and the solid particles on the sign surface, and improve the surface integrity of the sign after cleaning.

[0050] The present invention has the following beneficial effects:

[0051] 1. Through the co-directional meshing contact between the double-sided gear ring and the straight-tooth rack each time, the present invention linearly increases the cumulative interaction depth between the plate and the wedge plate, realizes the gradient increase of the interaction force between the rubber scraper and the surface of the light box after a single coverage of the surface (display area) of the light box. That is, when the double-sided gear ring meshes with the straight-tooth rack, the pawl unidirectionally promotes the carbon ring to drive the shaft coupling to rotate a certain angle. Thereafter, under the action of the outer wall wire groove of the shaft coupling, the ball drives the slider to move away from the carbon ring. During this process, the plate presses the wedge plate under the limiting action of the baffle, and finally the wedge plate squeezes the platen through the column. At this time, the contact force between the rubber scraper and the surface of the light box deepens, so as to avoid the rigid collision contact between the scraping shovel and the solid particles in the traditional scraping method, reduce the probability of damage to the sign surface, ensure the surface clarity of the sign, and improve the service life of the glass screen of the sign.

[0052] 2. By using the combination of snake grooves and wire grooves on the outer wall of the central shaft device, the present invention realizes that under one-way rotation, the rolling beads accumulate the single-movement trajectories of the sliders under the limitation of the snake grooves, thereby ensuring the linear change of the pressing depth of the sheet plate on the wedge plate. When the central shaft device rotates one circle, through the wire grooves, the restoring force of the telescopic spring and the straight rod guiding, the rolling beads are provided with an environment to return to the initial position. By repeating this process, the rubber spatula can always apply a force within the specified linear change range to perform gradient flexible scraping on the surface of the sign glass screen.

[0053] 3. Through the symmetrically distributed corrugated grooves, the present invention sprays a wavy solution spray on the area cleaned by the rubber spatula, that is, changing the traditional linear spraying method. On the one hand, it increases the coverage range of the dissolving solution with a unified opening diameter and improves the dissolving effect; on the other hand, it helps to reduce the rapid loss of the atomized dissolving solution under the influence of gravity, thereby improving the dissolving effect of the dissolving solution on the stubborn solid particles on the surface of the sign glass screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0055] Figure 2 It is a three-dimensional structure display diagram of the cleaning unit and the adjusting unit of the present invention.

[0056] Figure 3 It is an attachment of the present invention Figure 2 Further display diagram of the cleaning unit and the adjusting unit in the present invention.

[0057] Figure 4 It is a plan view of the internal structure of the movable room of the present invention.

[0058] Figure 5 It is an attachment of the present invention Figure 4 Enlarged schematic diagram of the partial structure at A in the present invention.

[0059] Figure 6 It is a bottom view of the partial internal structure of the movable room of the present invention.

[0060] Figure 7 It is a plan view of the internal structure of the movable room from another perspective of the present invention.

[0061] Figure 8 It is a three-dimensional display diagram of the double-sided gear ring and its internal structure of the present invention.

[0062] Figure 9 It is a plan view of the partial structure of the adjusting unit of the present invention.

[0063] Figure 10 It is an attachment of the present invention Figure 9 Three-dimensional display diagram of the partial structure in the present invention.

[0064] Figure 11It is a three-dimensional display diagram of the shaft seat and its partial structure in the present invention.

[0065] Figure 12 It is a three-dimensional structure display diagram of the ventilation unit in the present invention.

[0066] Figure 13 It is a cross-sectional display diagram of the internal structure of the light box in the present invention.

[0067] Figure 14 It is a display diagram of the transfer roller and its partial structure in the present invention.

[0068] Reference numerals in the figure: 1, movable house; 2, cleaning unit; 3, adjusting unit; 4, ventilation unit;

[0069] 11, angle bar; 12, triangular bracket; 13, light box;

[0070] 21, panel; 22, slide rail; 23, water pump; 24, liquid storage bin; 25, spraying bin; 26, corrugated groove; 27, water tank; 28, water distribution bin; 29, nozzle;

[0071] 211, air pump; 212, air pipe; 213, wind direction plate; 214, wind bin;

[0072] 221, angle steel beam; 222, fitting board; 223, regulating frame; 224, vertical rod; 225, table board; 226, rubber spatula; 227, column; 228, wedge plate;

[0073] 231, cushion ring; 232, sealing ring; 233, return spring;

[0074] 31, shaft coupling; 32, carbon ring; 33, double-sided gear ring; 34, support; 35, straight-tooth rack; 36, wall plate; 37, slider; 38, ear seat; 39, sheet board;

[0075] 311, pawl; 312, stopper; 313, ball; 314, baffle; 315, face ring; 316, end plate; 317, side position plate; 318, thimble;

[0076] 321, shaft seat; 322, orifice ring; 323, arrow board; 324, toothed plate; 325, straight rod; 326, telescopic spring;

[0077] 41, filter bin; 42, radiator fan; 43, decorative plate; 44, outer bin; 45, ventilation opening; 46, filter plate; 47, transfer roller; 48, single-sided gear; 49, single-sided rack;

[0078] 411, brush; 412, rubber plate. Detailed implementation manners

[0079] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0080] It should be noted that the terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0081] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0082] Referring to Figure 1 and Figure 2 It can be seen that an anti-pollution sign for a construction area includes a movable room 1, a cleaning unit 2 is arranged inside the movable room 1, an adjusting unit 3 is arranged at one end of the cleaning unit 2, and a ventilation unit 4 is arranged on the other side outside the movable room 1;

[0083] Referring to Figure 1 It can be seen that angle bars 11 are symmetrically arranged in the space on one side outside the movable room 1, and triangular brackets 12 are symmetrically arranged outside the movable room 1. The number of the triangular brackets 12 is two, and the triangular brackets 12 are snap-fitted and installed with the angle bars 11. A light box 13 is snap-fitted and installed at one end of the triangular bracket 12 close to the angle bar 11;

[0084] Referring to Figure 3 , Figure 4 and Figure 6 It can be seen that the cleaning unit 2 includes: a panel 21, which is snap-fitted and installed on the outer wall of the vertical section on one side of the movable room 1; a slide rail 22, which is slidably snap-fitted and installed between the two angle bars 11, and the panel 21 is snap-fitted and installed with the slide rail 22; in addition, a support 34 is snap-fitted and installed at one end of the slide rail 22; a water pump 23, which is arranged in the space on the side of the panel 21 away from the slide rail 22, and the water pump 23 is snap-fitted and installed with the outer wall of the movable room 1; a liquid storage bin 24, which is snap-fitted and installed on the inner wall of the movable room 1 close to the water pump 23; a spray bin 25, which is snap-fitted and installed at one end of the liquid storage bin 24 close to the slide rail 22; corrugated grooves 26, at least two, and symmetrically arranged on the end face of the spray bin 25 away from the liquid storage bin 24; a water tank 27, which is snap-fitted and installed on the inner wall of the movable room 1 away from the water pump 23; a water distribution bin 28, which is snap-fitted and installed at one end of the water tank 27 close to the slide rail 22; nozzles 29, at least one, and snap-fitted and installed on the end face of the water distribution bin 28 close to the spray bin 25;

[0085] Referring to Figure 4 and Figure 6It can be seen that the end surface of the liquid storage bin 24 close to the water tank 27 is connected with an air pump 211, and the end surface of the air pump 211 close to the spray bin 25 is connected with an air pipe 212, and the number of air pipes 212 is at least one, and the other end of the air pipe 212 is plugged with a wind direction plate 213, and the end surface of the wind direction plate 213 away from the spray bin 25 is connected with a wind bin 214 connected with the air pipe 212, and the opening of the wind bin 214 faces the wind direction plate 213;

[0086] Reference Figure 4 , Figure 5 and Figure 9 It can be known that an angle steel beam 221 is clamped and installed on the inner wall of the movable room 1, and a chiming plate 222 is clamped and installed on the end face of the angle steel beam 221 close to the panel 21, and a section frame 223 is clamped and installed on the end face of the chiming plate 222 close to the panel 21, and a vertical rod 224 is slidably clamped and installed between the horizontal sections of the section frame 223, and the number of the vertical rod 224 is at least one, and a table plate 225 is clamped and installed on the end of the vertical rod 224 away from the spray bin 25, and the number of the table plate 225 is one, and a glue spatula 226 is clamped and installed on the end of the vertical rod 224 close to the spray bin 25, and the number is one, and the cross-sectional shape of the glue spatula 226 is an isosceles trapezoid, and a column 227 is clamped and installed on the middle position of the end face of the side of the table plate 225 away from the section frame 223, and a wedge plate 228 is clamped and installed on the middle position of the outer wall of the column 227;

[0087] Reference Figure 4 and Figure 5 It can be seen that a gasket 231 is clamped and installed on the outer wall of one end of the vertical rod 224 close to the table 225, and a sealing ring 232 is slidingly clamped and installed on the end face of the vertical rod 224 away from the table 225, which is clamped and installed with the same node frame 223, and a return spring 233 is clamped and installed between the sealing ring 232 and the gasket 231.

[0088] The cleaning process of the surface of the light box 13 by the glue spatula 226 (the routing path planning of the glue spatula 226):

[0089] It is hereby explained that the support 34 is located at the corner of the light box 13 at one end away from the ground (with gravity as the direction reference - vertical);

[0090] In the initial state, the mobile house 1 is located at the end of the support 34;

[0091] First, under the guidance and support of the corner bar 11, the slide rail 22 drives the mobile house 1 to move horizontally through the panel 21 until the mobile house 1 completes a single repeated covering of the surface of the light box 13 at the same level, and then the rubber spatula 226 performs a reciprocating scraping of the surface of the light box 13 at the same level;

[0092] Next, when the rubber spatula 226 completes a single reciprocating scraping, the panel 21 controls the movable room 1 to move a certain distance in the vertical direction (in specific implementation, the single moving distance of the movable room 1 in the vertical direction: greater than half of the full body length of the rubber spatula 226 and less than the full body length of the rubber spatula 226). After that, repeat the first step, that is, drive the movable room 1 to move horizontally through the slide rail 22. In specific implementation, the electric slider 37 can be used to drive the slide rail 22 and the panel 21 to move;

[0093] Finally, when the rubber spatula 226 completes a single reciprocating covering and scraping of the surface (display area) of the light box 13, the panel 21 is used to control the movable room 1 to move towards the support 34 again. And at this time, the vertical distance between the movable room 1 and the support 34 must be less than the vertical distance between the movable room 1 and the support 34 in the initial state. That is, after each single reciprocating covering of the surface (display area) of the light box 13 by the rubber spatula 226, the movable room 1 needs to move a certain distance towards the support 34 (compared with the initial state), and then move to the initial state (the adjustment unit 3 completes this adjustment at this time), and repeat the cleaning process of the rubber spatula 226 on the surface of the light box 13;

[0094] During this process, under the action of an external pump (to achieve time-sharing operation with the water pump 23 in the later stage), the water tank 27 pumps the cleaning liquid stored inside it into the water distribution bin 28, and then through the nozzle 29 arranged in an array, the cleaning liquid is poured on the working end face of the rubber spatula 226 and the light box 13. And in specific implementation, for the nozzles 29 distributed away from the gravity end, they must be at the high position end of the rubber spatula 226 (the rubber spatula 226 is away from the gravity end), so as to ensure the complete coverage of the working area of the rubber spatula 226 by the nozzles 29 (the fluid flushing can quickly and effectively wash away the solid particles from the glass screen surface, penetrate into the fine gaps and textures inside the glass screen, and remove some solid particles that are difficult to wipe, so as to achieve a more thorough cleaning effect; and during the flushing process, the fluid continuously takes away the solid particles washed down, reducing the possibility of the solid particles reattaching to the glass screen surface and reducing the risk of secondary pollution);

[0095] The drying of the surface of the light box 13 and the re-dissolution of solid particles (stubborn):

[0096] After the glue shovel 226 has scraped the surface of the light box 13 with a certain force, the gas is pumped to the wind bin 214 area through the air pump 211 through the air pipe 212, and then the gas is guided to the defined area between the wind direction plate 213 and the glue shovel 226 through the wind bin 214 through the wind direction plate 213, so as to quickly dry the area scraped by the glue shovel 226, and further reduce the deposition of solid particles on the surface of the light box 13, and finally the solution stored in the liquid storage tank 24 is pumped to the spray tank 25 through the water pump 23, and the spray tank 25 evenly sprays the wave-like atomized solution to the area where the glue shovel 226 moves, changing the traditional linear spraying method. On the one hand, it increases the coverage of the solution under the uniform opening diameter and improves the dissolution effect; on the other hand, it helps to reduce the rapid loss of the atomized solution under the influence of gravity, thereby improving the dissolution effect of the solution on the stubborn solid particles on the surface of the sign glass screen;

[0097] The cleaning path of the aforementioned rubber spatula 226 is intended to prevent secondary contamination of the cleaning area in the previous step by sewage during the process of cleaning from bottom to top.

[0098] The principle of the change of the interaction force between the spatula 226 and the surface of the light box 13:

[0099] First, the column 227 drives the table 225 to move toward one end close to the water distribution tank 28;

[0100] Next, the node frame 223 is supported by the rigid connection between the interlocking plate 222 and the angle steel beam 221, ensuring that the vertical rod 224 drives the rubber spatula 226 to move toward the light box 13 (in this process, the gasket 231 compresses the return spring 233 to a specified deformation amount, and the sealing ring 232 reduces the wear of the return spring 233 when it is deformed, thereby increasing its service life);

[0101] Finally, the elastic restoring force of the return spring 233 drives the vertical rod 224 to lift the platform 225 to move to the initial position;

[0102] The tripod support 12 is helpful to improve the display safety and stability of the light box 13 in the construction area, and also helps the construction workers to adjust its position.

[0103] Reference Figure 2 , Figure 8 , Figure 9 and Figure 10It can be seen that the adjusting unit 3 includes: a shaft coupler 31 rotatably mounted at one end of the end face of one side of the movable room 1; a carbon ring 32 snap-fitted at one end of the shaft coupler 31 away from the center of the movable room 1; a double-sided gear ring 33 coaxially arranged outside the carbon ring 32 and rotatably connected to the movable room 1; a support 34 arranged in the space on one side outside the movable room 1; a straight-tooth rack 35 snap-fitted at one end of the support 34; a wall plate 36 snap-fitted on the inner wall of the horizontal section of the movable room 1; a slider 37 slidably snap-fitted in the middle area of the vertical section of the wall plate 36; two ear seats 38 as a group, symmetrically snap-fitted on one end face of the slider 37; a plate 39 rotatably fitted between the ear seats 38 through a rotating shaft, and a torsion spring is arranged between the plate 39 and the ear seats 38;

[0104] Referring to Figure 1 、 Figure 3 、 Figure 4 、 Figure 7 and Figure 9 It can be seen that a pawl 311 is rotatably fitted on the outer wall of the carbon ring 32 through a rotating shaft and a torsion spring. A stopper 312 is snap-fitted at one end of the pawl 311 close to the axis of the carbon ring 32. A ball 313 is rotatably fitted on the end face of the slider 37 away from the plate 39. A baffle 314 snap-fitted with the slider 37 is arranged on one side of the plate 39 close to the carbon ring 32. Face rings 315 are snap-fitted on the outer walls of both ends of the plate 39. End plates 316 are snap-fitted on the outer walls of the face rings 315. A side-position plate 317 is snap-fitted at one end of the wall plate 36 away from the carbon ring 32. A thimble 318 is inserted and installed at one end of the side-position plate 317 away from the wall plate 36;

[0105] Referring to Figure 10 and Figure 11 It can be seen that a shaft seat 321 is snap-fitted on the outer wall of the horizontal section of the movable room 1. A mouth ring 322 is snap-fitted on the outer wall of one end of the shaft seat 321 away from the movable room 1. Arrow plates 323 are symmetrically snap-fitted on the outer wall of the mouth ring 322. A toothed plate 324 is rotatably fitted between the arrow plates 323 through a rotating shaft, and a torsion spring is arranged between the toothed plate 324 and the arrow plates 323. A straight rod 325 is inserted in the middle position of the vertical section of the wall plate 36. A telescopic spring 326 is jointly snap-fitted between the end of the slider 37 away from the carbon ring 32 and the wall plate 36.

[0106] The specific adjustment process of the adjusting unit 3 for the interaction force between the rubber spatula 226 and the surface of the light box 13:

[0107] Or the explanation for the fact that in the "route planning of the rubber spatula 226" mentioned above, after each single scraping of the rubber spatula 226, the movable room 1 needs to move a certain distance towards one end of the support 34 each time:

[0108] First, control the movable house 1 through the panel 21, driving the double-sided gear ring 33 to move towards the support 34 until the double-sided gear ring 33 meshes with the straight-tooth rack 35 (the rotation direction of the lower double-sided gear ring 33 is defined as "reverse" at this time). At this time, the inner tooth opening of the lower double-sided gear ring 33 rotates reversely. During the rotation process, the pawl 311 is forced to drive the carbon ring 32 to rotate synchronously by a certain angle. (At this time, when the pawl 311 is subjected to the reverse acting force of the double-sided gear ring 33, the direction of the pawl 311 is limited by the stopper 312, that is, the pawl 311 can only flip "clockwise" (to ensure that when the double-sided gear ring 33 follows the movable house 1 and moves away from the support 34, the pawl 311 will not limit the rotation of the double-sided gear ring 33, and the torsion spring can ensure the consistency of the position of the pawl 311 before and after), and it is impossible to rotate counterclockwise. Therefore, the pawl 311 will drive the carbon ring 32 to rotate synchronously.);

[0109] Next, drive the shaft coupler 31 to rotate a specified angle synchronously through the carbon ring 32 (the single reverse rotation angle when the double-sided gear ring 33 meshes with the straight-tooth rack 35). At this time, the ball 313 drives the slider 37 to move away from the carbon ring 32 under the reaction of the "snake groove" on the outer wall of the shaft coupler 31 and under the combined guiding action of the wall plate 36 and the straight rod 325 until the sheet plate 39 contacts the wedge plate 228 (the baffle 314: can ensure the contact stiffness between the sheet plate 39 and the wedge plate 228 at this time, prevent the sheet plate 39 from rotating towards the carbon ring 32, ensure that when the shaft coupler 31 rotates, the wedge plate 228 drives the column 227 to move away from the carbon ring 32, and at this time, the interaction force between the rubber spatula 226 and the surface of the light box 13 deepens);

[0110] Finally, through the frictional force between the ball 313 and the "snake groove", the rotational friction between the carbon ring 32 and the shaft coupler 31 and the movable house 1, and the flexible clamping interaction force between the toothed plate 324 and the double-sided gear ring 33, counteract the reverse acting force exerted by the wedge plate 228 on the sheet plate 39, so as to prevent the shaft coupler 31 from rotating clockwise in a recovery manner when the double-sided gear ring 33 is separated from the straight-tooth rack 35, resulting in the lack of the scheme of the interaction force between the rubber spatula 226 and the light box 13 increasing in a gradient manner, improve the feasibility of the technology of linearly increasing the interaction force between the rubber spatula 226 and the surface of the light box 13, and further improve the scraping effect of the rubber spatula 226;

[0111] Regarding the process in which the interaction force between the rubber spatula 226 and the surface of the light box 13 reaches the maximum value and then the interaction force between the two returns to the initial state:

[0112] By adding a "wire groove" on the outer wall of the central axis 31, the wire groove is connected with the "snake groove", that is, when the ball 313 completely walks through the "snake groove" on the outer wall of the central axis 31, it immediately enters the wire groove, and then the slider 37 drives the plate 39 to return to its initial position under the guiding effect of the wire groove, the restoring force of the telescopic spring 326 and the guiding support of the straight rod 325 (in this process, when the ball 313 enters the "wire groove", the ejector pin 318 first comes into contact with the end plate 316, and then the face ring 315 drives the plate 39 to flip toward the edge plate 317 under the control of the end plate 316, until Until the sheet 39 is separated from the wedge plate 228, at this time, the wedge plate 228 gradually returns to the initial position under the restoring action of the reset spring 233. Thereafter, during the recovery process of the sheet 39, due to its unidirectional rotation, there will be no collision and limitation between the wedge plate 228; by flipping the sheet 39 back and forth twice, the consistency of the front and back compression of the column 227 is ensured, and the "snake groove" and "wire groove" are prevented from increasing in diameter due to wear over time, and then the column 227 moves to the initial position "too early", and then it is impossible to ensure that the interaction force between the rubber shovel 226 and the light box 13 reaches the specified maximum value).

[0113] Reference Figure 1 , Figure 12 and Figure 13 It can be seen that the ventilation unit 4 includes: a filter bin 41, which is snap-fitted and installed on the side of the slide rail 22 away from the mobile house 1; a heat dissipation fan 42, which is rotatably installed inside the filter bin 41, and the number is at least one; a decorative plate 43, which is slidably snap-fitted and installed on the end of the light box 13 close to the mobile house 1; an outer bin 44, which is snap-fitted and installed on the end of the light box 13 close to the mobile house 1, and the decorative plate 43 is plug-fitted and installed with the outer bin 44; in addition, the outer bin 44 is connected to the decorative plate 43 through a compression spring; a vent 45, which is opened at the end of the light box 13 close to the mobile house 1; a filter plate 46, which is snap-fitted and installed in the middle position inside the vent 45; a roller 47, which is arranged inside the vent 45, and the roller 47 is rotatably installed with the light box 13; a unilateral gear 48, which is snap-fitted and installed on the end of the roller 47 close to the support 34; a unilateral rack 49, which is snap-fitted and installed on the end of the support 34 close to the light box 13;

[0114] Reference Figure 10 and Figure 13 It can be seen that the outer wall of the rotating roller 47 is symmetrically installed with brushes 411, and the outer wall of the rotating roller 47 is symmetrically installed with rubber plates 412, and the rubber plates 412 and the brushes 411 are alternately distributed.

[0115] Advantages of external cooling system:

[0116] On the one hand, by means of the external filter chamber 41, the maintenance difficulty of the heat dissipation of the light box 13 in the later stage can be reduced. On the other hand, it is convenient for non-professionals to perform daily cleaning and maintenance on the heat dissipation system, reduce the interaction between non-professionals and the inside of the light box 13, and improve the service life of the electronic components in the light box 13;

[0117] In the specific implementation manner, the gas inside and outside the light box 13 is exchanged through the heat dissipation fan 42. Specifically, it can be driven by an internal motor. When the filter chamber 41 follows the slide rail 22 from one end of the light box 13 to the other end, the decorative plate 43 returns (with an internal compression spring) to the initial position under the guiding action of the outer chamber 44 (in the initial state, the decorative plate 43 can close the ventilation opening 45 for the interaction between the light box 13 and the outside world), so as to reduce the gas exchange between the inside of the light box 13 and the external environment during the cleaning with the rubber spatula 226 and prevent pollutants from entering its interior;

[0118] At the same time, through the meshing between the single-sided rack 49 and the single-sided gear 48, the roller 47 is driven to rotate, and the rubber plate 412 (with a certain ductility) further seals and isolates the ventilation opening 45 from the external circulation environment, further ensuring the cleanliness of the internal environment of the light box 13. During this process, the brush 411 can sweep away the "small amount" of impurities on the end face of the filter plate 46 inside the ventilation opening 45, ensure the cutting and combing property of the filter plate 46 for the interacting gas, and reduce the impact on the inside of the light box 13 caused by phenomena such as turbulence.

[0119] The cleaning method of an anti-fouling sign for a construction area provided by the present invention is as follows: The first step: First, under the control of the panel 21 of the movable room 1, drive the double-sided toothed ring 33 to move towards the straight-toothed rack 35 until a certain degree of meshing occurs between the two. At this time, under the limiting action of the double-sided toothed ring 33, the pawl 311 controls the carbon ring 32 to drive the shaft coupling 31 to rotate a certain angle. During this process, through the clamping fit between the shaft coupling 31 and the ball 313, the slider 37 drives the plate 39, pressing the wedge plate 228 to drive the column 227 to move a certain distance away from the carbon ring 32 until the rubber spatula 226 is tangent to the surface of the light box 13;

[0120] The second step: Then, control the movable room 1 to move a specified distance away from the support 34 through the panel 21, and then control the entire cleaning unit 2 to reciprocate on the surface of the light box 13 through the slide rail 22 until the movement track of the rubber spatula 226 achieves a single coverage of the surface (display area) of the light box 13. During this process, the cleaning liquid stored in the water tank 27 is pumped by the water pump 23 to the water distribution chamber 28, and finally flows through the nozzle 29 to the working surface where the rubber spatula 226 contacts the light box 13;

[0121] Step 3: Finally, through the re-engagement between the double-sided gear ring 33 and the straight-tooth rack 35, linearly increase the interaction depth between the sheet plate 39 and the wedge plate 228, so as to realize the linear correlation between the contact interaction force between the rubber spatula 226 and the surface of the light box 13 and the number of times of co-directional engagement between the double-sided gear ring 33 and the straight-tooth rack 35, forming a gradient flexible growth of the acting force of the rubber spatula 226, breaking the rigid contact phenomenon between the traditional scraping spatula and the solid particles on the surface of the sign, and improving the surface integrity of the sign after cleaning.

[0122] The circuits and controls involved in the present invention are all prior arts and will not be elaborated here.

[0123] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. An anti-fouling sign for a construction area, comprising a mobile house (1), characterized in that: A cleaning unit (2) is arranged inside the mobile house (1), an adjustment unit (3) is arranged at one end of the cleaning unit (2), and a ventilation unit (4) is arranged at the other side outside the mobile house (1); The regulating unit (3) comprises: A central shaft device (31) is rotatably mounted on one end of an end surface of one side of the movable house (1); A carbon ring (32) is mounted on the end of the central shaft (31) away from the center of the mobile house (1); A double-sided gear ring (33) is coaxially arranged outside the carbon ring (32) and is rotationally connected to the movable housing (1); A support (34) is arranged in a space on one side outside the movable house (1); A straight toothed rack (35) is mounted on one end of a support (34) by clamping; A wall plate (36) is mounted on the inner wall of the horizontal section of the mobile house (1) by snap-fitting; A slider (37) is slidably mounted in the middle area of ​​the vertical section of the wall plate (36); The ear seats (38) are two in a group and are symmetrically clamped and mounted on one end surface of the slider (37); The plate (39) is rotatably mounted between the ear seats (38) via a rotating shaft, and a torsion spring is arranged between the plate (39) and the ear seats (38).

2. The anti-fouling sign for construction areas according to claim 1, characterized in that: A ratchet (311) is rotatably mounted on the outer wall of the carbon ring (32) through a rotating shaft and a torsion spring, a stopper (312) is clamped and mounted on one end of the ratchet (311) close to the axis of the carbon ring (32), a ball (313) is rollingly mounted on the end surface of the slider (37) away from the plate (39), a baffle (314) clamped and mounted with the slider (37) is arranged on the side of the plate (39) close to the carbon ring (32), a face ring (315) is clamped and mounted on the outer wall of both ends of the plate (39), an end plate (316) is clamped and mounted on the outer wall of the face ring (315), an edge plate (317) is clamped and mounted on one end of the wall plate (36) away from the carbon ring (32), and a thimble (318) is plugged and mounted on one end of the edge plate (317) away from the wall plate (36).

3. The anti-fouling sign for a construction area according to claim 1, characterized in that: The outer wall of the horizontal section of the movable house (1) is clamped with an axle seat (321), the outer wall of the axle seat (321) away from the movable house (1) is clamped with a mouth ring (322), the outer wall of the mouth ring (322) is symmetrically clamped with an arrow plate (323), a tooth plate (324) is installed between the arrow plates (323) through a rotating shaft, and a torsion spring is arranged between the tooth plate (324) and the arrow plate (323), a straight rod (325) is inserted and installed in the middle position of the vertical section of the wall plate (36), and a telescopic spring (326) is clamped and installed between the end of the slider (37) away from the carbon ring (32) and the wall plate (36).

4. The anti-fouling sign for a construction area according to claim 1, characterized in that: A corner bar (11) is symmetrically arranged on one side of the outer space of the movable house (1), and two triangular brackets (12) are symmetrically arranged on the outer space of the movable house (1), and the triangular brackets (12) are installed in a snap-fitting manner with the corner bar (11), and a light box (13) is snap-fitted and installed at one end of the triangular bracket (12) close to the corner bar (11).

5. The anti-fouling sign for construction areas according to claim 4, characterized in that: The cleaning unit (2) comprises: A panel (21) is mounted on a vertical outer wall of one side of the mobile house (1); The slide rail (22) is installed between the two corner strips (11) by sliding snap-fitting, and the panel (21) is snap-fitted and installed with the slide rail (22); in addition, the support (34) is snap-fitted and installed at one end of the slide rail (22); The water pump (23) is arranged in a space on one side of the panel (21) away from the slide rail (22), and the water pump (23) is installed by snap-fitting with the outer wall of the mobile house (1); A liquid storage tank (24) is mounted on the inner wall of the mobile house (1) near one end of the water pump (23); A spray tank (25) is mounted on the liquid storage tank (24) by snap-fitting at one end close to the slide rail (22); There are at least two corrugated grooves (26) symmetrically arranged on the end surface of the spray chamber (25) away from the liquid storage chamber (24); A water tank (27) is mounted on the inner wall of the mobile house (1) at one end away from the water pump (23); A water distribution chamber (28) is mounted on the water tank (27) at one end close to the slide rail (22); There is at least one nozzle (29) which is mounted on the end surface of the water distribution chamber (28) close to the spray chamber (25).

6. The anti-fouling sign for a construction area according to claim 5, characterized in that: An air pump (211) is mounted on the end surface of the liquid storage bin (24) close to the water tank (27), an air pipe (212) is mounted on the end surface of the air pump (211) close to the spray bin (25), the number of air pipes (212) is at least one, a wind direction plate (213) is mounted on the other end of the air pipe (212), a wind bin (214) connected to the wind pipe (212) is mounted on the end surface of the wind direction plate (213) away from the spray bin (25), and the opening of the wind bin (214) faces the wind direction plate (213).

7. The anti-fouling sign for a construction area according to claim 6, characterized in that: The inner wall of the movable room (1) is clamped with an angle steel beam (221), the end face of the angle steel beam (221) close to the panel (21) is clamped with a fitting plate (222), the end face of the fitting plate (222) close to the panel (21) is clamped with a section frame (223), and vertical rods (224) are slidably clamped between horizontal sections of the section frame (223), and the number of vertical rods (224) is at least one, and the vertical rod (224) is away from the spray chamber ( A table plate (225) is clamped and installed at one end of the vertical rod (224), and the number of the table plate (225) is one. A glue shovel (226) is clamped and installed at one end of the vertical rod (224) close to the spray chamber (25), and the number of the glue shovel (226) is one, and the cross-sectional shape of the glue shovel (226) is an isosceles trapezoid. A column (227) is clamped and installed at the middle position of the end surface of one side of the table plate (225) away from the node frame (223), and a wedge plate (228) is clamped and installed at the middle position of the outer wall of the column (227).

8. The anti-fouling sign for a construction area according to claim 7, characterized in that: A gasket (231) is clamped and installed on the outer wall of one end of the vertical rod (224) close to the table plate (225), and a sealing ring (232) which is clamped and installed with the same pitch frame (223) is slidably clamped and installed on the end surface of the vertical rod (224) away from the table plate (225), and a return spring (233) is clamped and installed between the sealing ring (232) and the gasket (231).

9. The anti-fouling sign for a construction area according to claim 5, characterized in that: The ventilation unit (4) comprises: The filter bin (41) is mounted on the side of the slide rail (22) away from the movable house (1); A heat dissipation fan (42) is rotatably mounted inside the filter bin (41), and the number of the heat dissipation fan is at least one; A decorative panel (43) is slidably mounted on the light box (13) at one end close to the mobile house (1); The outer bin (44) is snap-fitted and installed at one end of the light box (13) close to the mobile house (1), and the decorative plate (43) is plug-fitted and installed with the outer bin (44); in addition, the outer bin (44) and the decorative plate (43) are connected by a compression spring; A vent (45) is provided at one end of the light box (13) close to the mobile house (1); A filter plate (46) is mounted in a snap-fit ​​manner at a middle position inside the vent (45); A rotating roller (47) is arranged inside the vent (45), and the rotating roller (47) is rotatably mounted with the light box (13); A single-sided gear (48) is mounted on the roller (47) at one end close to the support (34) by clamping; The single-sided rack (49) is mounted by clamping on one end of the support (34) close to the light box (13).

10. The anti-fouling sign for construction areas according to claim 9, characterized in that: The outer wall of the rotating roller (47) is symmetrically provided with brushes (411), and the outer wall of the rotating roller (47) is symmetrically provided with rubber plates (412), and the rubber plates (412) and the brushes (411) are alternately distributed.

Images