A rainfall monitoring device

By designing the cleaning and support components, the problems of poor cleaning and device instability caused by the adhesion of leaves and other impurities were solved, resulting in a rainfall monitoring device with efficient impurity removal and enhanced stability.

CN224354599UActive Publication Date: 2026-06-12SHAANXI PROVINCIAL GEOLOGICAL ENVIRONMENT MONITORING STATION

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI PROVINCIAL GEOLOGICAL ENVIRONMENT MONITORING STATION
Filing Date
2025-06-18
Publication Date
2026-06-12

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Abstract

This utility model belongs to the technical field of rainfall monitoring equipment, and specifically discloses a rainfall monitoring device, including a base and a rain collection box fixedly installed on the top of the base. A filter screen is movably engaged at the top of the rain collection box, and a cleaning assembly is fixedly installed on the outside of the rain collection box. Multiple support assemblies are fixedly installed in a ring at equal intervals at the bottom of the base. The cleaning assembly includes a support frame fixedly connected to the outside of the rain collection box. This rainfall monitoring device uses the extension and retraction of a telescopic electric cylinder to drive the sliding of a lug and a rack. The sliding of the rack drives the rotation of a gear, which in turn drives a rotating shaft. The rotation of the shaft causes a cleaning rod to swing back and forth on top of the filter screen, thereby scraping leaves and other impurities outwards. When the cleaning rod swings and hits a limit bar, the scraper moves away from the top of the filter screen. The repeated swinging of the cleaning rod ensures the removal of leaves and other impurities, guaranteeing efficient cleaning.
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Description

Technical Field

[0001] This utility model relates to the technical field of rainfall monitoring equipment, specifically a rainfall monitoring device. Background Technology

[0002] Rainfall refers to the depth of water that falls from the sky to the ground and accumulates on a horizontal surface without evaporation, infiltration, or runoff. It can intuitively represent the amount of rainfall. Rainfall is an important basis for calculating regional water resources. Therefore, it is essential to find an accurate and convenient method to predict rainfall. In order to monitor changes in rainfall in local areas and facilitate relevant departments to issue rainstorm warnings, we can reduce the damage caused by rain disasters to the local area.

[0003] The existing patent publication number CN218886199U discloses a rainfall monitoring device, which filters rainwater through a filter screen. The impurities filtered out and the debris falling on the filter screen are cleaned by a scraper driven by a motor to prevent the rainwater collection hopper from clogging and affecting the rainwater collection effect. The rainwater enters the box for collection and monitoring.

[0004] When the above-mentioned patent is in use, the scraper rotates on the filter screen. Since rainwater easily adheres to the outside of the scraper, the rotation of the scraper cannot effectively remove the leaves and other impurities, resulting in more and more leaves and impurities accumulating outside the scraper, affecting the cleaning effect. At the same time, its box is located above the base, with a high center of gravity, which makes it unstable due to rainwater collection and wind. Utility Model Content

[0005] The purpose of this utility model is to provide a rainfall monitoring device to solve the problems mentioned in the background art, such as leaves and other impurities easily adhering to the outside of the scraper when they are contaminated with rainwater. The rotation of the scraper cannot effectively remove the leaves and other impurities, resulting in more and more leaves and impurities accumulating outside the scraper, which affects the cleaning effect. At the same time, its box is located above the base, with a high center of gravity, which causes poor stability due to rainwater collection and wind.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A rainfall monitoring device includes a base and a rain collection box fixedly installed on the top of the base. A filter screen is movably engaged at the top of the rain collection box. A cleaning assembly is fixedly installed on the outer side of the rain collection box. Multiple support assemblies are fixedly installed in a ring at equal intervals at the bottom of the base. The cleaning assembly includes a support frame fixedly connected to the outer side of the rain collection box. A rotating shaft is rotatably installed inside the support frame. A cleaning rod located above the filter screen is fixedly installed on the top of the rotating shaft. A gear is fixedly installed on the outer side of the inner side of the support frame. A limit frame is fixedly installed on the outer side of the limit frame. A telescopic electric cylinder is fixedly installed inside the limit frame. An ear block is fixedly installed at the end of the telescopic electric cylinder. A rack meshing with the outer side of the gear is fixedly installed on the inner side of the ear block. A limit rod is fixedly installed on the top of the support frame.

[0008] Preferably, a slide rail is fixedly connected to the top of the support frame, and a slider is fixedly connected to the top of the rack, with the slider being movably engaged inside the slide rail.

[0009] Preferably, the limiting rods are symmetrically arranged on the left and right sides of the rotating shaft.

[0010] Preferably, a scraper that fits the top of the filter screen is fixedly installed at the bottom of the cleaning rod.

[0011] Preferably, the support assembly includes an adjusting sleeve fixedly installed at the bottom of the base, a sliding rod is movably engaged inside the adjusting sleeve, a fixing hole is provided on the outer side of the adjusting sleeve, adjusting holes adapted to the fixing holes are provided at equal intervals inside the sliding rod, a wing bolt penetrating the fixing holes and adjusting holes is movably installed on the outer side of the sliding rod, and a support leg is fixedly connected to the outer side of the sliding rod.

[0012] Preferably, the outer side of the slide rod is provided with a straight groove, and the outer side of the slide rod is provided with an alignment mark located directly above the adjustment hole.

[0013] Preferably, a drain pipe located below the base is fixedly connected to the bottom of the rain collection box, and a valve is fixedly installed inside the drain pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The extension and retraction of the telescopic electric cylinder drives the lug and rack to slide. The sliding of the rack drives the gear to rotate, and the rotation of the gear drives the shaft to rotate. The rotation of the shaft causes the sweeping rod to swing back and forth on top of the filter screen, thereby scraping leaves and other impurities outward. When the sweeping rod swings and hits the limit bar, the scraper will leave the top of the filter screen. When the sweeping rod hits the limit bar, the leaves and other impurities are shaken off. The repeated swinging of the sweeping rod ensures the removal of leaves and other impurities, prevents the accumulation of impurities, and ensures cleaning efficiency.

[0016] 2. The extension length can be adjusted by pushing, pulling and sliding the slide rod inside the adjustment sleeve. The fixing hole and adjustment hole are aligned, and the butterfly bolt is passed through and tightened to achieve fixation. By adjusting the support components at the bottom of the base, the support area of ​​the legs can be increased, thereby enhancing the overall stability. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the cleaning component of this utility model;

[0019] Figure 3 This is a schematic diagram of the installation position of the telescopic electric cylinder of this utility model;

[0020] Figure 4 This is a schematic diagram of the distribution structure of the support components located at the bottom of the base of this utility model;

[0021] Figure 5 This is an exploded view of the structure of the support component of this utility model.

[0022] In the diagram: 1. Base; 2. Rain collection box; 3. Filter screen; 4. Cleaning assembly; 41. Support frame; 42. Rotating shaft; 43. Cleaning rod; 44. Gear; 45. Limiting frame; 46. Telescopic electric cylinder; 47. Ear block; 48. Rack; 49. Limiting rod; 410. Slide rail; 411. Slider; 412. Scraper; 5. Support assembly; 51. Adjusting sleeve; 52. Slide rod; 53. Fixing hole; 54. Adjusting hole; 55. Wing bolt; 56. Support leg; 57. Straight groove; 58. Alignment mark; 6. Drain pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5This utility model provides a technical solution: a rainfall monitoring device, including a base 1 and a rain collection box 2 fixedly installed on the top of the base 1. A filter screen 3 is movably connected to the top of the rain collection box 2, and a cleaning assembly 4 is fixedly installed on the outside of the rain collection box 2. Multiple support assemblies 5 are fixedly installed in a ring at equal intervals on the bottom of the base 1. The cleaning assembly 4 includes a support frame 41 fixedly connected to the outside of the rain collection box 2. A rotating shaft 42 is rotatably installed inside the support frame 41. A cleaning rod 43 located above the filter screen 3 is fixedly installed on the top of the rotating shaft 42. A gear 44 is fixedly installed on the outside of the rotating shaft 42. A limit frame 45 is fixedly installed on the outer side of the inside of the support frame 41. A telescopic electric cylinder 46 is fixedly installed inside the limit frame 45. The end of the telescopic electric cylinder 46... An ear block 47 is fixedly installed, and a rack 48 meshing with the outer side of a gear 44 is fixedly installed on the inner side of the ear block 47. A limit rod 49 is fixedly installed on the top of the support frame 41. The extension and retraction of the telescopic electric cylinder 46 causes the ear block 47 and the rack 48 to slide. The sliding of the rack 48 causes the gear 44 to rotate. The rotation of the gear 44 drives the rotating shaft 42 to rotate. The rotation of the rotating shaft 42 causes the cleaning rod 43 to swing back and forth on the top of the filter screen 3, thereby scraping leaves and other impurities to the outside. When the cleaning rod 43 swings to the limit rod 49, the scraper 412 will leave the top of the filter screen 3. The cleaning rod 43 continues to swing to the limit rod 49, and leaves and other impurities are shaken off. The repeated swinging of the cleaning rod 43 ensures the removal of leaves and other impurities, prevents the accumulation of impurities, and ensures cleaning efficiency.

[0025] A slide rail 410 is fixedly connected to the top of the support frame 41, and a slider 411 is fixedly connected to the top of the rack 48. The slider 411 is movably engaged inside the slide rail 410.

[0026] The presence of the slide rail 410 provides a stable guiding effect for the slider 411, enabling the rack 48 to move smoothly in a straight line under the drive of the telescopic electric cylinder 46. The tight fit between the slider 411 and the slide rail 410 effectively prevents the rack 48 from deviating during movement, ensuring smooth operation. The slide rail 410, together with the slider 411, can withstand a certain weight and pressure, ensuring that the rack 48 can still maintain a precise meshing state after long-term use.

[0027] The limiting rods 49 are symmetrically arranged on the left and right sides of the rotating shaft 42. The stroke of the telescopic electric cylinder 46 is calculated to control the swing angle of the sweeping rod 43. The symmetrical arrangement of the limiting rods 49 effectively constrains the swing range of the sweeping rod 43, allowing it to operate stably within a predetermined range. When the sweeping rod 43 contacts the left or right limiting rods 49, it generates a small vibration, causing leaves and other impurities to be shaken off.

[0028] The bottom of the cleaning bar 43 is fixedly equipped with a scraper 412 that fits against the top of the filter screen 3. The scraper 412 is made of wear-resistant material, which can maintain good contact performance during use and reduce wear caused by friction. The tight fit with the top of the filter screen 3 ensures that impurities attached to the surface of the filter screen 3 can be effectively removed during the movement of the cleaning bar 43.

[0029] Please see Figure 4 and Figure 5 The support assembly 5 includes an adjusting sleeve 51 fixedly installed at the bottom of the base 1. A sliding rod 52 is movably engaged inside the adjusting sleeve 51. A fixing hole 53 is provided on the outer side of the adjusting sleeve 51. Adjusting holes 54, which are adapted to the fixing holes 53, are equidistantly provided inside the sliding rod 52. A wing bolt 55, which penetrates the fixing holes 53 and the adjusting holes 54, is movably installed on the outer side of the sliding rod 52. A support leg 56 is fixedly connected to the outer side of the sliding rod 52. The extension length can be adjusted by pushing, pulling and sliding the sliding rod 52 inside the adjusting sleeve 51. The fixing holes 53 are aligned with the adjusting holes 54, and the wing bolt 55 is passed through and tightened to achieve fixation. By adjusting the support assembly 5 at the bottom of the base 1, the support area of ​​the support leg 56 can be increased, thereby enhancing the overall stability.

[0030] A straight groove 57 is provided on the outer side of the slide rod 52, and an alignment mark 58 is provided on the outer side of the slide rod 52, located directly above the adjustment hole 54. The straight groove 57 extends along the length of the slide rod 52 and is at the same height as the alignment mark 58. The alignment mark 58 adopts a serrated design to facilitate users to quickly identify and align the adjustment hole 54, thereby improving the convenience and accuracy of operation.

[0031] Please see Figure 4 The bottom of the rain collection box 2 is fixedly connected to a drain pipe 6 located below the base 1. A valve is fixedly installed inside the drain pipe 6, which can be opened after monitoring to drain the rainwater in the rain collection box 2.

[0032] Working principle: When in use, the base 1 is set at the target position, and the slide rod 52 is pulled outward along the inside of the adjusting sleeve 51. The slide rod 52 drives the support leg 56 to move outward. After the fixing hole 53 is aligned with the adjusting hole 54, the butterfly bolt 55 is screwed through the fixing hole 53 and the adjusting hole 54 to fix it. The support surface of the support leg 56 is expanded by adjusting the multiple support components 5 at the bottom of the base 1 to improve stability. The filter screen 3 collects rainwater and filters impurities, allowing the rainwater to flow into the rainwater collection box 2. The water level is monitored by the water level gauge in the rainwater collection box 2. When the rainfall exceeds the set value, the alarm is triggered by the alarm connected to the water level gauge.

[0033] Leaves and other impurities are intercepted on the filter screen 3. The extension and retraction of the telescopic electric cylinder 46 inside the limiting frame 45 drives the lug 47 and the rack 48 connected to the lug 47 to slide. The rack 48 drives the slider 411 to slide within the slide rail 410 for guidance. The sliding of the rack 48 drives the gear 44 to rotate, which in turn drives the rotating shaft 42 to rotate. The rotating shaft 42 then drives the cleaning rod 43 to swing at the top of the filter screen 3. The scraper 412 at the bottom of the cleaning rod 43 scrapes the leaves and other impurities outward. When the cleaning rod 43 swings and hits the limiting rod 49, the scraper 412 moves away from the top of the filter screen 3. The cleaning rod 43 swings and hits the limiting rod 49, shaking off the leaves and other impurities. The reciprocating swing of the cleaning rod 43 cleans the leaves and other impurities, thus preventing the accumulation of leaves and impurities and ensuring the cleaning effect. The above is the working process of the entire device. All contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rainfall monitoring device, comprising a base (1) and a rain collection box (2) fixedly installed on the top of the base (1), characterized in that: The top of the rain collection box (2) is movably connected to a filter screen (3), a cleaning component (4) is fixedly installed on the outside of the rain collection box (2), and multiple support components (5) are fixedly installed in a ring at equal intervals at the bottom of the base (1). The cleaning assembly (4) includes a support frame (41) fixedly connected to the outside of the rain collection box (2). A rotating shaft (42) is rotatably installed inside the support frame (41). A cleaning rod (43) located above the filter screen (3) is fixedly installed on the top of the rotating shaft (42). A gear (44) is fixedly installed on the outside of the rotating shaft (42). A limit frame (45) is fixedly installed on the outer side of the inside of the support frame (41). A telescopic electric cylinder (46) is fixedly installed inside the limit frame (45). An ear block (47) is fixedly installed at the end of the telescopic electric cylinder (46). A rack (48) meshing with the outside of the gear (44) is fixedly installed on the inner side of the ear block (47). A limit rod (49) is fixedly installed on the top of the support frame (41).

2. The rainfall monitoring device according to claim 1, characterized in that: The top of the support frame (41) is fixedly connected to a slide rail (410), and the top of the rack (48) is fixedly connected to a slider (411), which is movably engaged inside the slide rail (410).

3. The rainfall monitoring device according to claim 1, characterized in that: The limiting rod (49) is symmetrically arranged on the left and right sides of the rotating shaft (42).

4. A rainfall monitoring device according to claim 3, characterized in that: The bottom of the cleaning rod (43) is fixedly installed with a scraper (412) that fits the top of the filter screen (3).

5. A rainfall monitoring device according to claim 1, characterized in that: The support assembly (5) includes an adjusting sleeve (51) fixedly installed at the bottom of the base (1). A slide rod (52) is movably engaged inside the adjusting sleeve (51). A fixing hole (53) is provided on the outer side of the adjusting sleeve (51). Adjusting holes (54) adapted to the fixing holes (53) are provided at equal intervals inside the slide rod (52). A wing bolt (55) penetrating the fixing hole (53) and the adjusting hole (54) is movably installed on the outer side of the slide rod (52). A support leg (56) is fixedly connected to the outer side of the slide rod (52).

6. A rainfall monitoring device according to claim 5, characterized in that: The slide bar (52) has a straight groove (57) on its outer side, and an alignment mark (58) is provided on the outer side of the slide bar (52) directly above the adjustment hole (54).

7. A rainfall monitoring device according to claim 5, characterized in that: The bottom of the rain collection box (2) is fixedly connected to a drain pipe (6) located below the base (1), and a valve is fixedly installed inside the drain pipe (6).