A parking indicating device and method of use thereof

Abstract

This invention discloses a parking indicator device and its usage method, comprising an indicator sign, a rainwater collection component, a cleaning component, a debris collection component, and a spraying component. The rainwater collection component is located on the top surface of the indicator sign; the cleaning component is located at the bottom of the rainwater collection component and inside the indicator sign; the debris collection component is located on the left side surface of the indicator sign; and the spraying component is located on the front and rear sides of the indicator sign. This invention achieves automatic cleaning by incorporating an indicator sign, rainwater collection component, cleaning component, debris collection component, spraying component, water deflector, overflow hole, water level monitor, and water guide channel. This solves the problem that parking indicators are often installed outdoors, easily accumulate dust, obstruct the display, and require frequent manual cleaning, resulting in a large cleaning workload and significant manpower waste in areas with high indicator usage.

Description

Technical Field

[0001] This invention belongs to the field of indicator technology, and particularly relates to a parking indicator and its usage method. Background Technology

[0002] Parking guidance devices are specialized equipment and signage systems that rely on technologies such as sensor detection, photoelectric display, mechanical limiters, and signage guidance. They are deployed in all scenarios, including parking lot entrances and exits, passages, and parking spaces, to achieve parking space status perception, parking path guidance, vehicle parking limit, and standardized parking order. The core of these devices are divided into four categories: intelligent detection and indication, physical limit and positioning, visual signage guidance, and auxiliary warning and protection. They cover the entire process from vehicle entry into the parking lot to precise parking and are suitable for various types of parking lots, including commercial complexes, residential communities, office buildings, and public venues.

[0003] A parking indicator device has the following problems: parking indicator devices are often installed outdoors, and dust easily accumulates on their surface, which can block the display. They also require frequent cleaning by personnel. In areas where indicator devices are used extensively, the cleaning workload is large and it is a waste of manpower. Summary of the Invention

[0004] To address the problems existing in the prior art, the present invention provides a parking indicator device and its usage method, which has the advantage of automatic cleaning. It solves the problems that parking indicator devices are often installed outdoors, are prone to surface dust accumulation, which can block the display, require frequent manual cleaning, and in areas where indicator devices are used extensively, the cleaning workload is large and the manpower is wasted.

[0005] The present invention is implemented as follows: a parking indicator device and its method of use, comprising an indicator sign, a rainwater collection component, a cleaning component, a debris collection component, and a spraying component, characterized in that: the rainwater collection component is disposed on the top surface of the indicator sign, the cleaning component is disposed at the bottom of the rainwater component and located inside the indicator sign, the debris collection component is disposed on the left side surface of the indicator sign, and the spraying component is disposed on the front and rear sides of the indicator sign.

[0006] As a preferred embodiment of the present invention, the rainwater collection component includes a rainwater chamber, which is fixedly connected to the top surface of the sign. A filter screen is provided on the top of the rainwater chamber, and a rainwater storage chamber is provided on the top surface of the sign. Two filter screens are fixedly connected to the top surface of the rainwater storage chamber, and a rainwater monitoring device is provided on the top of the rainwater chamber. The first layer of filter screen has an arched structure, the second layer of filter screen has a V-shaped structure, and the pores of the first layer of filter screen are larger than those of the second layer of filter screen.

[0007] As a preferred embodiment of the present invention, the impurity collection assembly includes a collection chamber, which is fixedly connected to the left side surface of the indicator. An inlet is provided on the left side surface of the indicator, which penetrates the left side surface of the indicator and the right side surface of the collection chamber. The inlet is located above the two-layer filter screen, and a filter plate is slidably connected to the bottom of the collection chamber.

[0008] In a preferred embodiment of the present invention, the cleaning component includes a motor, which is fixedly connected to the left side surface of the indicator and is positioned horizontally above the second layer of filter screen. A screw is fixedly connected to the left side surface of the motor, and the other end of the screw is rotatably connected to the left side surface of the inner wall of the collection chamber. A threaded ring is fitted onto the surface of the screw, and a wall scraper is rotatably connected to the surface of the threaded ring. Sliding grooves are formed on the front and rear surfaces of the indicator, and the wall scraper is slidably connected inside the sliding grooves. An anti-detachment groove is formed on the front surface of the indicator near the bottom, and an anti-detachment device is fixedly connected to the rear surface of the wall scraper, which is slidably connected inside the anti-detachment groove. The bottom surface of the scraper and the top surface of the second-layer filter have the same shape and are in contact. The scraper and the feed inlet have the same shape. The rear surface of the scraper and the front surface of the indicator are in contact.

[0009] As a preferred embodiment of the present invention, the spray assembly includes a communicating vessel, which is fixedly connected to the front and rear surfaces of the rain storage chamber. A plurality of spray heads are fixedly connected to the bottom outer side of the communicating vessel, and a plurality of No. 1 water supply pipes are fixedly connected to the bottom inner side of the communicating vessel. A clean water chamber is provided at the bottom of the rain storage chamber, and a No. 2 water supply pipe is fixedly connected to the bottom inner side of the communicating vessel. A water inlet is provided on the right side surface of the clean water chamber, and a sealing plug is slidably connected inside the water inlet. The No. 1 water supply pipe is installed inside the rainwater storage chamber, and the No. 2 water supply pipe penetrates the bottom surface of the rainwater storage chamber and extends into the clear water chamber.

[0010] As a preferred embodiment of the present invention, a water baffle is provided at the top of the screw, the water baffle is inverted V-shaped, and the top of the water baffle is chamfered.

[0011] As a preferred embodiment of the present invention, an overflow prevention hole is provided on the left side surface of the rainwater storage chamber, the overflow prevention hole is located inside the collection chamber, and water level monitors are provided inside the rainwater storage chamber and the clean water chamber.

[0012] As a preferred embodiment of the present invention, a water guide groove is provided on the top surface of the sign base, the water guide groove extends to both ends, and the bottom of the wall scraper contacts the top surface of the water guide groove.

[0013] As a preferred embodiment of the present invention, the method of use includes the following steps: Step 1: When it rains, rainwater falls on the surface of a first-layer filter screen. During the sliding process, the rainwater undergoes initial filtration through the first-layer filter screen to prevent large impurities such as leaves from entering the rainwater chamber. During the descent, the water deflector guides the water flow to both sides to prevent the water flow from washing away and wearing down the screw. The filtered rainwater enters the interior of the rainwater chamber and undergoes secondary fine filtration through a second-layer filter screen inside the rainwater chamber. The filtered rainwater then enters the rainwater storage chamber. Step 2: When the rain monitoring device detects rain for five minutes, it automatically starts the motor. The motor drives the screw to rotate, the screw drives the threaded ring to move to the left, and the threaded ring drives the wall scraper to move to the left to scrape the surface of the second layer of filter screen, pushing impurities to the left and into the collection chamber, where they are collected through the filter plate. At the same time, the wall scraper cleans the front and back surfaces of the indicator. Step 3: On sunny days, set the sprinkler heads to start at night. The sprinkler heads supply water from inside the rainwater storage tank through the No. 1 water supply pipe. When the water level monitor inside the rainwater storage tank detects that the water level inside the rainwater storage tank is too low, start the No. 2 water supply pipe to supply water from the clean water tank and start the motor. The motor drives the screw to rotate, and the screw drives the threaded ring to move to the left. The threaded ring drives the wall scraper to move to the left to scrape and clean the front and back surfaces of the indicator. Step 4: The water sprayed from the spray head flows into the guide channel during the wall scraping process, and drains water to the left and right sides through the guide channel. At the same time, the wall scraper scrapes the bottom of the guide channel to prevent the accumulation of mud and sand.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention achieves automatic cleaning by setting up signs, rainwater collection components, cleaning components, impurity collection components, spraying components, water deflectors, overflow holes, water level monitors, and water guide channels.

[0015] 2. This invention, by setting up a rainwater collection component, can automatically collect and filter rainwater on rainy days to replenish water resources.

[0016] 3. By setting up an impurity collection component, the present invention can automatically clean and collect impurities from the two-layer filter screen.

[0017] 4. By setting up a cleaning component, the present invention can perform scraping operations on the front and back surfaces of the sign to remove dust, bird droppings and other adhering substances.

[0018] 5. By setting up a spray assembly, the present invention can rinse the front and back sides of the sign, making it easy to clean. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the indicating device provided in an embodiment of the present invention; Figure 2This is a three-dimensional cross-sectional schematic diagram of the rainwater harvesting component provided in an embodiment of the present invention; Figure 3 This is a three-dimensional cross-sectional schematic diagram of the cleaning component provided in an embodiment of the present invention; Figure 4 This is a three-dimensional exploded view of the impurity collection component provided in an embodiment of the present invention; Figure 5 This is a three-dimensional structural diagram of the spray assembly provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the three-dimensional cross-sectional structure of the water guide channel provided in an embodiment of the present invention.

[0020] In the diagram: 1. Indicator sign; 2. Rainwater collection assembly; 21. Rainwater chamber; 22. First-layer filter; 23. Rainwater storage chamber; 24. Second-layer filter; 25. Rainwater monitoring device; 3. Cleaning assembly; 31. Motor; 32. Screw; 33. Threaded ring; 34. Scraper; 35. Sliding groove; 36. Anti-detachment groove; 37. Anti-detachment device; 4. Impurity collection assembly; 41. Collection chamber; 42. Feed inlet; 43. Filter plate; 5. Spray assembly; 51. Communicator; 52. Spray head; 53. No. 1 water supply pipe; 54. Clean water chamber; 55. No. 2 water supply pipe; 56. Water inlet; 57. Sealing plug; 6. Water baffle; 7. Overflow hole; 8. Water level monitor; 9. Water guide channel. Detailed Implementation

[0021] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0022] The structure of the present invention will now be described in detail with reference to the accompanying drawings.

[0023] Example 1

[0024] Reference Figure 1-4 The first embodiment of the present invention provides a parking indicator device, including an indicator sign 1, a rainwater collection component 2, a cleaning component 3, a debris collection component 4, and a spray component 5. The rainwater collection component 2 is disposed on the top surface of the indicator sign 1, the cleaning component 3 is disposed at the bottom of the rainwater collection component and located inside the indicator sign 1, the debris collection component 4 is disposed on the left side surface of the indicator sign 1, and the spray component 5 is disposed on the front and rear sides of the indicator sign 1.

[0025] Specifically, by setting up the rainwater collection component 2, rainwater can be automatically collected and filtered on rainy days to replenish water resources. By setting up the impurity collection component 4, the second-layer filter screen 24 can be automatically cleaned and impurities collected. By setting up the cleaning component 3, the front and back surfaces of the sign 1 can be scraped to remove dust, bird droppings and other attachments. By setting up the spray component 5, the front and back surfaces of the sign 1 can be rinsed for easy cleaning.

[0026] Furthermore, on rainy days, rainwater is filtered and collected by the rainwater collection component 2, and the front and rear surfaces of the sign 1 are cleaned by the cleaning component 3. During the operation of the cleaning component 3, the impurity collection component 4 is activated to clean the surface of the cleaning component 3. On non-rainy days, the spray component 5 and the cleaning component 3 are activated to clean the front and rear surfaces of the sign 1.

[0027] Example 2

[0028] In the second embodiment of the present invention, the rainwater collection component 2 includes a rainwater chamber 21, which is fixedly connected to the top surface of the sign 1. A filter screen 22 is provided on the top of the rainwater chamber 21, and a rainwater storage chamber 23 is provided on the top surface of the sign 1. Two filter screens 24 are fixedly connected to the top surface of the rainwater storage chamber 23, and a rainwater monitoring device 25 is provided on the top of the rainwater chamber 21. The first layer filter screen 22 has an arched structure, and the second layer filter screen 24 has a V-shaped structure. The holes of the first layer filter screen 22 are larger than those of the second layer filter screen 24. The impurity collection component 4 includes a collection chamber 41, which is fixedly connected to the left side surface of the indicator 1. The left side surface of the indicator 1 has an inlet 42 that penetrates the left side surface of the indicator 1 and the right side surface of the collection chamber 41. The inlet 42 is located above the second layer filter screen 24. A filter plate 43 is slidably connected to the bottom of the collection chamber 41.

[0029] Specifically, by setting up a first-layer filter 22 and a second-layer filter 24, impurities in rainwater can be effectively filtered out. By setting up a filter plate 43, solid matter can be collected, and rainwater flows out from the filter plate 43 and is collected separately.

[0030] Furthermore, when it rains, rainwater splashes onto the surface of a filter screen 22. During the sliding process, the rainwater undergoes preliminary filtration through the filter screen 22 to prevent large impurities such as leaves from entering the rainwater chamber 21. The filtered rainwater then enters the interior of the rainwater chamber 21 and undergoes secondary fine filtration through a second layer of filter screen 24 inside the rainwater chamber 21. The filtered rainwater then enters the rainwater storage chamber 23.

[0031] Example 3

[0032] In the third embodiment of the present invention, the cleaning component 3 includes a motor 31, which is fixedly connected to the left side surface of the indicator 1 and is positioned above the second layer of filter screen 24. A screw 32 is fixedly connected to the left side surface of the motor 31, and the other end of the screw 32 is rotatably connected to the left side surface of the inner wall of the collection chamber 41. A threaded ring 33 is fitted on the surface of the screw 32, and a wall scraper 34 is rotatably connected to the surface of the threaded ring 33. Sliding grooves 35 are provided on the front and rear sides of the indicator 1, and the wall scraper 34 is slidably connected inside the sliding grooves 35. An anti-detachment groove 36 is provided on the front side surface of the indicator 1 near the bottom, and an anti-detachment device 37 is fixedly connected to the rear side surface of the wall scraper 34. The anti-detachment device 37 is slidably connected inside the anti-detachment groove 36. The bottom surface of the scraper 34 and the top surface of the second-layer filter screen 24 have the same shape and are in contact. The scraper 34 and the feed inlet 42 have the same shape. The rear surface of the scraper 34 is in contact with the front surface of the indicator 1. The spray assembly 5 includes a connector 51. The connector 51 is fixedly connected to the front and rear surfaces of the rain storage chamber 23. Several spray heads 52 are fixedly connected to the bottom outer side of the connector 51. Several No. 1 water supply pipes 53 are fixedly connected to the bottom inner side of the connector 51. A clean water chamber 54 is provided at the bottom of the rain storage chamber 23. A No. 2 water supply pipe 55 is fixedly connected to the bottom inner side of the connector 51. A water inlet hole 56 is opened on the right side surface of the clean water chamber 54. A sealing plug 57 is slidably connected inside the water inlet hole 56. Water supply pipe 53 is installed inside the rainwater storage chamber 23. Water supply pipe 55 penetrates the bottom surface of the rainwater storage chamber 23 and extends into the clear water chamber 54. A water baffle 6 is installed on the top of the screw 32. The water baffle 6 is inverted V-shaped and has a chamfer on the top. An overflow hole 7 is opened on the left side surface of the rainwater storage chamber 23. The overflow hole 7 is installed inside the collection chamber 41. A water level monitor 8 is installed inside the rainwater storage chamber 23 and the clear water chamber 54. A water guide groove 9 is opened on the top surface of the base of the indicator 1. The water guide groove 9 extends to both ends. The bottom of the wall scraper 34 is in contact with the top surface of the water guide groove 9.

[0033] Specifically, by setting the screw 32 and the wall scraper 34, the impurities filtered from the surface of the second-layer filter screen 24 can be pushed to the left into the collection chamber 41 at the same time, and the front and rear surfaces of the indicator 1 are scraped during the leftward movement.

[0034] Furthermore, when cleaning is required, the motor 31 is started, the motor 31 drives the screw 32 to rotate, the screw 32 drives the threaded ring 33 to move to the left, the threaded ring 33 drives the scraper 34 to move to the left, and performs scraping operation on the surface of the second layer filter screen 24, pushing impurities to the left and into the collection chamber 41, where they are collected by the filter plate 43. At the same time, the scraper 34 cleans the front and rear sides of the indicator 1.

[0035] Working principle of the invention: When it rains, rainwater falls on the surface of the first-layer filter screen 22. During the sliding process, the rainwater undergoes preliminary filtration through the first-layer filter screen 22, preventing large impurities such as leaves from entering the rainwater chamber 21. During the descent, the water deflector 6 guides the water flow to both sides to prevent the water flow from eroding and wearing the screw 32. The filtered rainwater enters the interior of the rainwater chamber 21 and undergoes secondary fine filtration through the second-layer filter screen 24 inside the rainwater chamber 21. The filtered rainwater then enters the rainwater storage chamber 23. When there is too much water, it flows into the collection chamber 41 through the overflow hole 7 and is discharged through the filter plate 43. When the rainwater monitoring device 25 detects that it has been raining for five minutes, it automatically starts the motor 31. The motor 31 drives the screw 32 to rotate, and the screw 32 drives the threaded ring 33 to move to the left. The threaded ring 33 drives the wall scraper 34 to move to the left, scraping the surface of the second-layer filter screen 24 and pushing impurities to the left. The water enters the collection chamber 41 and is collected by the filter plate 43. At the same time, the wall scraper 34 cleans the front and back surfaces of the indicator 1. On sunny days, the spray head 52 is set to start at night. The spray head 52 supplies water from the rainwater storage chamber 23 through the first water supply pipe 53. When the water level monitor 8 inside the rainwater storage chamber 23 detects that the water level inside the rainwater storage chamber 23 is too low, the second water supply pipe 55 is started to supply water from the clean water chamber 54. The motor 31 is started, and the motor 31 drives the screw 32 to rotate. The screw 32 drives the threaded ring 33 to move to the left. The threaded ring 33 drives the wall scraper 34 to move to the left to clean the front and back surfaces of the indicator 1. The water sprayed by the spray head 52 flows into the guide trough 9 during the wall scraping process and drains water to the left and right sides through the guide trough 9. At the same time, the wall scraper 34 scrapes the bottom of the guide trough 9 to prevent the accumulation of mud and sand.

[0036] In summary, this parking indicator device and its usage method, through the indicator sign 1, rainwater collection component 2, cleaning component 3, impurity collection component 4, spray component 5, water deflector 6, overflow hole 7, water level monitor 8, and water guide channel 9, solves the problems that parking indicators are often installed outdoors, are prone to surface dust accumulation, which can obstruct the display, require frequent cleaning, and in areas where indicator devices are used extensively, the cleaning workload is large and relatively wasteful of manpower.

[0037] It should be noted that the water level monitor, rainwater monitoring device, motor, screw, sprinkler head, and sealing plug are existing devices or equipment, or devices or equipment that can be implemented by existing technology. Furthermore, the specific composition and principle of the power supply of the water level monitor, rainwater monitoring device, motor, screw, sprinkler head, and sealing plug are clear to those skilled in the art, and therefore will not be described in detail.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A parking indicator device, comprising an indicator sign (1), a rainwater collection assembly (2), a cleaning assembly (3), a debris collection assembly (4), and a spray assembly (5), characterized in that: The rainwater collection component (2) is located on the top surface of the sign (1), the cleaning component (3) is located at the bottom of the rainwater component and inside the sign (1), the impurity collection component (4) is located on the left side surface of the sign (1), and the spray component (5) is located on the front and rear sides of the sign (1).

2. The parking indicator device as described in claim 1, characterized in that: The rainwater collection component (2) includes a rainwater chamber (21), which is fixedly connected to the top surface of the sign (1). A filter screen (22) is provided on the top of the rainwater chamber (21), and a rainwater storage chamber (23) is provided on the top surface of the sign (1). Two filter screens (24) are fixedly connected to the top surface of the rainwater storage chamber (23). A rainwater monitoring device (25) is provided on the top of the rainwater chamber (21). The first layer filter (22) has an arched structure, the second layer filter (24) has a V-shaped structure, and the holes of the first layer filter (22) are larger than those of the second layer filter (24).

3. A parking indicator device as described in claim 2, characterized in that: The impurity collection assembly (4) includes a collection chamber (41), which is fixedly connected to the left side surface of the indicator (1). The left side surface of the indicator (1) is provided with a feed inlet (42), which penetrates the left side surface of the indicator (1) and the right side surface of the collection chamber (41). The feed inlet (42) is located above the second layer of filter screen (24), and a filter plate (43) is slidably connected to the bottom of the collection chamber (41).

4. A parking indicator device as described in claim 3, characterized in that: The cleaning component (3) includes a motor (31), which is fixedly connected to the left side of the indicator (1) and is positioned above the second layer of filter screen (24). A screw (32) is fixedly connected to the left side of the motor (31), and the other end of the screw (32) is rotatably connected to the left side of the inner wall of the collection chamber (41). A threaded ring (33) is fitted on the surface of the screw (32), and a wall scraper (34) is rotatably connected to the surface of the threaded ring (33). Sliding grooves (35) are provided on the front and rear sides of the indicator (1), and the wall scraper (34) is slidably connected inside the sliding grooves (35). An anti-detachment groove (36) is provided on the front side of the indicator (1) near the bottom, and an anti-detachment device (37) is fixedly connected to the rear side of the wall scraper (34), and the anti-detachment device (37) is slidably connected inside the anti-detachment groove (36). The bottom surface of the scraper (34) and the top surface of the second filter screen (24) have the same shape and are in contact. The scraper (34) and the feed inlet (42) have the same shape. The rear surface of the scraper (34) is in contact with the front surface of the indicator (1).

5. A parking indicator device as described in claim 4, characterized in that: The spray assembly (5) includes a connector (51), which is fixedly connected to the front and rear surfaces of the rain storage chamber (23). Several spray heads (52) are fixedly connected to the bottom outer side of the connector (51), and several No. 1 water supply pipes (53) are fixedly connected to the bottom inner side of the connector (51). A clean water chamber (54) is provided at the bottom of the rain storage chamber (23), and a No. 2 water supply pipe (55) is fixedly connected to the bottom inner side of the connector (51). A water inlet hole (56) is opened on the right side surface of the clean water chamber (54), and a sealing plug (57) is slidably connected inside the water inlet hole (56). The first water supply pipe (53) is located inside the rainwater storage chamber (23), and the second water supply pipe (55) penetrates the bottom surface of the rainwater storage chamber (23) and extends into the clear water chamber (54).

6. A parking indicator device as described in claim 5, characterized in that: The top of the screw (32) is provided with a water baffle (6), which is an inverted V-shape and has a chamfer on the top.

7. A parking indicator device as described in claim 6, characterized in that: The rainwater storage chamber (23) has an overflow hole (7) on its left side surface. The overflow hole (7) is located inside the collection chamber (41). Water level monitors (8) are installed inside the rainwater storage chamber (23) and the clear water chamber (54).

8. A parking indicator as described in claim 7, characterized in that: The top surface of the base of the sign (1) is provided with a water guide groove (9), which extends to both ends, and the bottom of the scraper (34) contacts the top surface of the water guide groove (9).

9. A parking indicator device as described in claims 1 to 8, the method of using it includes the following steps: Step 1: When it rains, rainwater splashes onto the surface of a first-layer filter screen (22). During the sliding process, the rainwater undergoes preliminary filtration through the first-layer filter screen (22) to prevent large impurities such as leaves from entering the rainwater chamber (21). During the descent, the water deflector (6) guides the water flow to both sides to prevent the water flow from scouring and abrading the screw (32). The filtered rainwater enters the interior of the rainwater chamber (21) and undergoes secondary fine filtration through the second-layer filter screen (24) inside the rainwater chamber (21). The filtered rainwater enters the rainwater storage chamber (23). When there is too much water, it flows into the collection chamber (41) through the overflow hole (7) and is discharged through the filter plate (43). Step 2: When the rain monitoring device (25) detects rain for five minutes, it automatically starts the motor (31). The motor (31) drives the screw (32) to rotate. The screw (32) drives the threaded ring (33) to move to the left. The threaded ring (33) drives the scraper (34) to move to the left, scraping the surface of the second layer filter screen (24) and pushing the impurities to the left into the collection chamber (41). They are collected through the filter plate (43). At the same time, the scraper (34) cleans the front and back surfaces of the indicator (1). Step 3: On sunny days, set the timer to start the sprinkler head (52) every night. The sprinkler head (52) supplies water from the rain storage tank (23) through the No. 1 water supply pipe (53). When the water level monitor (8) inside the rain storage tank (23) detects that the water level inside the rain storage tank (23) is too low, start the No. 2 water supply pipe (55) to supply water from the clean water tank (54) and start the motor (31). The motor (31) drives the screw (32) to rotate. The screw (32) drives the threaded ring (33) to move to the left. The threaded ring (33) drives the wall scraper (34) to move to the left to scrape and clean the front and rear surfaces of the indicator (1). Step 4: The water sprayed from the spray head (52) flows into the guide trough (9) during the wall scraping process, and drains water to the left and right sides through the guide trough (9). At the same time, the wall scraper (34) scrapes the bottom of the guide trough (9) to prevent the accumulation of mud and sand.

Images