CN220543142U

CN220543142U - Piezoelectric type rainfall sensor support

Info

Publication number: CN220543142U
Application number: CN202321972489.XU
Authority: CN
Inventors: 黄进
Original assignee: Zhejiang Guochang Machinery Co ltd
Current assignee: Zhejiang Guochang Machinery Co ltd
Priority date: 2023-07-25
Filing date: 2023-07-25
Publication date: 2024-02-27
Anticipated expiration: 2033-07-25

Abstract

The utility model provides a piezoelectric type rainfall sensor bracket, and belongs to the technical field of sensors. The piezoelectric rainfall sensor support comprises a sensor, wherein a base and an outer cover are sleeved on the outer periphery of the sensor, a water tank is arranged on one side end surface of the outer cover, a toothed ring is rotationally connected to the inner wall of the water tank, and a scale scraping assembly is arranged on the toothed ring; the scraping unit price comprises at least two rotary rotating pins fixed on the end face of the toothed ring, and scraping rods are sleeved on the rotary rotating pins, so that siphonage can be generated through the structure of the siphon pipe after the water tank is full of rainwater, water in the water tank can impact the water wheel, the scraping rods can rotate on the sensor, the surface of the sensor can be cleaned, and the phenomenon that the sensor is blocked by obstacles such as dead leaves or clay is effectively avoided, so that a measuring result has a larger error.

Description

Piezoelectric type rainfall sensor support

Technical Field

The utility model belongs to the field of sensors, and particularly relates to a piezoelectric type rainfall sensor bracket.

Background

The piezoelectric rainfall sensor adopts an impact measurement principle to calculate the weight of a single raindrop, so as to calculate the rainfall. The raindrops are subjected to the effects of the weight of the raindrops and air resistance in the falling process, the speed is constant when reaching the ground, the weight of the raindrops can be obtained by measuring the impact according to P=mv, and then the continuous rainfall is obtained.

Because piezoelectric type rainfall sensor is commonly used for field long-term monitoring, piezoelectric type principle is influenced greatly by the environment, and dust and dead leaves are difficult to be washed out by rain and drop after pasting on the sensor surface to lead to raindrops to be blocked by the dead leaves when falling on the sensor, easily lead to data error big.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a piezoelectric type rainfall sensor bracket.

In order to achieve the above purpose, the utility model provides a piezoelectric rainfall sensor bracket, which comprises a sensor and is characterized in that: the sensor is characterized in that a base and an outer cover are sleeved on the outer periphery of the sensor, a water tank is arranged on one side end face of the outer cover, a toothed ring is rotationally connected to the inner wall of the water tank, and a scale scraping assembly is arranged on the toothed ring;

the scraping unit comprises at least two rotary rotating pins fixed on the end face of the toothed ring, scraping rods are sleeved on the rotary rotating pins, the scraping rods are connected with the rotary rotating pins through torsion springs, and the toothed ring is driven by water flow and the gear set.

Optionally, the arc recess has been seted up to rotatory round pin periphery side, be equipped with protruding piece on the doctor-bar, its protruding piece is located rotatory round pin's arc recess, and the radian of arc recess is less than the degree, the doctor-bar bottom is the arc setting, is equipped with the comb hair on its arc terminal surface, the doctor-bar is kept away from one side end of rotatory round pin is equipped with the counter weight part.

Optionally, the inner wall of the outer cover is rotatably connected with a plurality of driven gears through a rotating shaft, and each driven gear is located below the toothed ring and meshed with the toothed ring.

Optionally, the rotation axis of one of the driven gears extends to the outside in a direction away from the center line of the outer cover, and a transmission gear is fixed to the outer peripheral portion thereof.

Optionally, the outer peripheral side of the outer cover is also rotatably connected with a water wheel and a driving gear through a rotating rod, wherein the driving gear is meshed with the transmission gear.

Optionally, a water outlet cavity is further formed in the outer cover, a siphon is detachably installed in the water outlet cavity, the siphon is located at the side edge of the water wheel, an opening of the siphon faces the water wheel, and the other end of the water outlet cavity is communicated with the bottom of the water tank.

In summary, compared with the prior art, the utility model has the following beneficial effects:

1. due to the arrangement of the scraping assembly, when the water tank is full of rainwater, the siphon phenomenon is generated through the structure of the siphon pipe, water in the water tank impacts the water wheel, the scraping rod rotates on the sensor, the surface of the sensor can be cleaned, the phenomenon that obstacles such as dead leaves or clay block the sensor is effectively avoided, and a measuring result of the sensor has a larger error.

2. After the water in the water tank is used, the scraping rod can rotate to the edge of the sensor again under the action of the tension of the torsion spring, so that the falling of raindrops can be prevented by the scraping rod.

3. Through the setting of enclosing cover, can carry out secondary protection to the sensor internals, avoid parts erosion in the sensor such as outdoor rainwater dust, prolong the life of sensor greatly.

Drawings

Fig. 1 is a perspective view of the present utility model.

Fig. 2 is a front view of the present utility model.

FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 2 in accordance with the present utility model.

Fig. 4 is a cross-sectional view taken along the direction B-B in fig. 2 in accordance with the present utility model.

Fig. 5 is an enlarged view of the present utility model at C in fig. 2.

10. An outer cover; 11. a base; 12. a toothed ring; 13. a scraping rod; 14. a rotary pin; 15. a driven gear; 16. a transmission gear; 17. a water wheel; 18. a drive gear; 19. a siphon tube; 20. a sensor; 21. a water tank; 22. and a water outlet cavity.

Detailed Description

In order to enable those skilled in the art to better understand the present utility model, the following description will make clear and complete descriptions of the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model.

As shown in figures 1-5, a piezoelectric rainfall sensor support comprises a sensor 20, a base 11 and an outer cover 10 are sleeved on the outer periphery of the sensor 20, a water tank 21 is arranged on one side end face of the outer cover 10, a toothed ring 12 is rotatably connected to the inner wall of the water tank 21, a scale scraping component is mounted on the toothed ring 12, the scale scraping component comprises at least two rotary rotating pins 14 fixed on the end face of the toothed ring 12, a scraping rod 13 is sleeved on the rotary rotating pins 14, the scraping rod 13 is connected with the rotary rotating pins 14 through torsion springs, arc-shaped grooves are formed in the outer periphery of the rotary rotating pins 14, protruding blocks are arranged on the scraping rod 13 and are located in the arc-shaped grooves of the rotary rotating pins 14, the radian of the arc-shaped grooves is smaller than 90 degrees, the bottom end face of the scraping rod 13 is arc-shaped, carding is arranged on the arc-shaped end face of the scraping rod 13, a counterweight part is arranged at one side end of the scraping rod 13 far away from the rotary rotating pins 14, and the inertia of the scraping rod 13 can be increased through the counterweight, when the toothed ring 12 rotates, the end of the scraping rod 13 does not immediately follow the toothed ring 12, so that the end of the scraping rod 13 can immediately rotate, and the scraping rod 13 can rotate along with the toothed ring 12 through the speed difference between the end of the scraping rod 13 and the root of the scraping rod 13, namely the toothed ring 12 is driven by the rotation, and the rotation of the rotating center of the rotating ring 12.

The inner wall of the outer cover 10 is rotatably connected with a plurality of driven gears 15 through a rotating shaft, each driven gear 15 is positioned below the toothed ring 12 and meshed with the toothed ring 12, the rotating shaft of one driven gear 15 extends to the outside in a direction away from the center line of the outer cover 10, a transmission gear 16 is fixed on the outer peripheral part of the driven gear 15, a water wheel 17 and a driving gear 18 are rotatably connected on the outer peripheral side of the outer cover 10 through a rotating rod, and the driving gear 18 is meshed with the transmission gear 16.

The outer cover 10 is also internally provided with a water outlet cavity 22, a siphon pipe 19 is detachably arranged in the water outlet cavity 22, a siphon effect structure exists in the siphon pipe 19, namely, water flow in the water tank 21 can be automatically sucked after a horizontal plane overflows the siphon pipe 19, the siphon pipe 19 is positioned at the side edge of the water wheel 17, an opening of the siphon pipe 19 faces the water wheel 17, and the other end of the water outlet cavity 22 is communicated with the bottom of the water tank 21.

When the sensor 20 is used, the sensor 20 is required to be placed in the outer cover 10, then the base 11 is screwed on, secondary protection is carried out on internal parts of the sensor 20, corrosion of parts in the sensor 20 caused by outdoor rainwater dust and the like is avoided, the service life of the sensor 20 is greatly prolonged, then when rainy days are required to be detected, rainwater drops on the surface of the sensor 20 and then can slide into the water tank 21, meanwhile, the water tank 21 is gradually filled with rainwater together, the water level of the water tank 21 gradually exceeds the siphon 19, then the structure of the siphon 19 produces a siphon phenomenon, water flow in the water tank 21 flows out through the siphon 19, water flowing out can impact the water wheel 17, the water wheel 17 rotates, the transmission gear 16 is driven by the rotation of the water wheel 17, the rotation of the transmission gear 16 drives the toothed ring 12 through the driven gear 15, the rotation of the toothed ring 12 is driven by the inertia effect of the scraping rod 13, the scraping rod 13 is enabled to overcome the center of the torsional spring and then to slide into the water tank 21, the scraping rod 13 is driven by the elasticity on the sensor 20, the water flow in the water tank 21 can be prevented from flowing out through the siphon 19, the water flow in the surface of the scraping rod 13 can be effectively prevented from flowing out of the sensor 20, and the sensor 20 is prevented from being used up when the sensor 20 is in the side of the sensor is in the place of the large-down, and the sensor is prevented from being used up.

It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

Claims

1. A piezoelectric type rainfall sensor support, comprising a sensor (20), characterized in that: the sensor is characterized in that a base (11) and an outer cover (10) are sleeved on the outer periphery of the sensor (20), a water tank (21) is arranged on one side end surface of the outer cover (10), a toothed ring (12) is rotationally connected to the inner wall of the water tank (21), and a scale scraping assembly is arranged on the toothed ring (12);

the scraping assembly comprises at least two rotating pins (14) fixed on the end face of the toothed ring (12), scraping rods (13) are sleeved on the rotating pins (14), the scraping rods (13) are connected with the rotating pins (14) through torsion springs, and the toothed ring (12) is driven by water flow and a gear set.

2. A piezoelectric rainfall sensor support according to claim 1, characterised in that: the rotary pin (14) is characterized in that an arc-shaped groove is formed in the outer peripheral side of the rotary pin (14), a protruding block is arranged on the scraping rod (13), the protruding block is located in the arc-shaped groove of the rotary pin (14), the radian of the arc-shaped groove is smaller than 90 degrees, the bottom end of the scraping rod (13) is in an arc-shaped structure, carding is arranged on the arc-shaped end face of the scraping rod, and a counterweight part is arranged at the tail end of one side of the scraping rod (13) away from the rotary pin (14).

3. A piezoelectric rainfall sensor support according to claim 1, characterised in that: the inner wall of the outer cover (10) is rotatably connected with a plurality of driven gears (15) through a rotating shaft, and each driven gear (15) is positioned below the toothed ring (12) and meshed with the toothed ring (12).

4. A piezoelectric rainfall sensor support according to claim 3, characterised in that: one of the driven gears (15) extends to the outside in a direction away from the center line of the outer cover (10) in the axial direction, and a transmission gear (16) is fixed to the outside.

5. The piezoelectric rainfall sensor support according to claim 4, wherein: a water wheel (17) and a driving gear (18) are also connected on the outer peripheral side of the outer cover (10) in a rotating way through a rotating rod, wherein the driving gear (18) is meshed with the transmission gear (16).

6. A piezoelectric rainfall sensor support according to claim 1, characterised in that: the water outlet device is characterized in that a water outlet cavity (22) is further formed in the outer cover (10), a siphon (19) is detachably arranged in the water outlet cavity (22), the siphon (19) is located on the side edge of the water wheel (17), an opening of the siphon (19) faces the water wheel (17), and the other end of the water outlet cavity (22) is communicated with the bottom of the water tank (21).