A mobile lightning protection device for water level sensor

Abstract

The present invention relates to the technical field of water level sensors and discloses a mobile lightning protection device for a water level sensor, comprising a water level sensor and a guide frame, wherein a channel is provided at the center of the guide frame, the water level sensor is arranged in the channel, a water trough is provided in front of the guide frame, a bearing ring is provided below the water level sensor, a main float is provided at the bottom of the water level sensor, a through groove is provided at the center of the main float, a guide rod is provided at the center of the bottom of the water level sensor, a secondary float is movably sleeved at the center of the guide rod, a bearing plate is provided at the bottom of the guide rod, a pressure sensing component is provided at the bottom of the water level sensor, a pressure ring is provided on the top surface of the secondary float, the pressure ring is movably connected to the guide rod, and the guide frame is provided with an adjustment mechanism. The water level sensor of the device is always located above the water surface, and even if current is accidentally introduced into the water, it will not be introduced into the water level sensor, thereby preventing the current from affecting the water level sensor, thereby improving the service life of the water level sensor and ensuring the effectiveness of monitoring.

Description

Technical Field

[0001] The invention relates to a lightning protection device for a water level sensor, in particular to a mobile lightning protection device for a water level sensor. Background Art

[0002] A water level sensor is an instrument that converts the measured water level into a corresponding electrical signal in real time. Most water level sensors need to be immersed in water during monitoring. If nearby waters are struck by lightning or a man-made electric shock, the current can be conducted through the water to the water level sensor, causing it to malfunction or be damaged, impacting subsequent monitoring results. To ensure proper operation, water level sensors must be protected not only from direct lightning strikes but also from directing current along the water flow. Summary of the Invention

[0003] In view of this, the technical problem to be solved by the present invention is to provide a lightning protection device that prevents the water level sensor from being damaged by water conductivity.

[0004] The technical solution of the present invention is achieved as follows:

[0005] The present invention provides a mobile lightning protection device for a water level sensor, comprising a water level sensor and a guide frame fixed around a reservoir, wherein a channel running through from top to bottom is provided at the center of the guide frame, the water level sensor is arranged in the channel, a water trough is provided in front of the guide frame, the water trough is communicated with the channel, a bearing ring for supporting the water level sensor is provided below the water level sensor, a main float is provided at the bottom of the water level sensor, a through groove is provided at the center of the main float, a guide rod passing downward through the through groove is provided at the center of the bottom of the water level sensor, a secondary float is movably sleeved at the center of the guide rod, a bearing plate for supporting the secondary float is provided at the bottom of the guide rod, a pressure sensing component is provided at the bottom of the water level sensor, a pressure ring for applying pressure to the pressure sensing component is provided on the top surface of the secondary float, the pressure ring is movably connected to the guide rod, and the guide frame is provided with an adjustment mechanism for driving the bearing ring to move up and down.

[0006] Preferably, the pressure sensing component includes a pressure sensor and a signal transmitter, the pressure sensor is provided with a water level sensor bottom above the through slot, the signal transmitter is installed inside the water level sensor, and the pressure sensor is connected to the signal transmitter.

[0007] Preferably, the adjustment mechanism includes an adjusting screw and a rotating block. Vertical cavities are opened on both sides of the guide frame. The adjusting screws are installed in the cavities. The two ends of the adjusting screws are rotatably connected to the inner walls of the cavities. The rotating blocks are located on both sides of the top of the guide frame. The rotating blocks are coaxially fixedly connected to the adjusting screw through a connecting shaft, and the two sides of the supporting ring are respectively threadedly connected to the adjusting screw.

[0008] Preferably, a driving mechanism that drives the adjusting mechanism to move synchronously is also provided above the guide frame, and the driving mechanism includes a driving cover, a driving wheel, a driven wheel and a rotating cap. A mezzanine is provided in the center of the driving cover, and the driving wheel is rotatably connected to the upper and lower inner walls of the mezzanine through a rotating shaft. Grooves are provided on both sides of the bottom surface of the driving cover, and the rotating cap is rotatably connected to the inner wall of the groove. A clamping groove matching the rotating block is provided at the bottom of the rotating cap, and the driven wheel is located on both sides of the driving wheel. The driven wheel is rotatably connected to the upper and lower inner walls of the mezzanine through a rotating shaft, and the driven wheel is connected to the driving wheel through a transmission chain. The driven wheel and the rotating cap are coaxially connected one by one, and a power mechanism that drives the driving wheel to rotate is also provided on the top of the driving cover.

[0009] Preferably, the power mechanism includes a hand crank, and the hand crank is coaxially connected to the driving wheel through a connecting shaft.

[0010] Preferably, the rotating block is a regular quadrangular prism.

[0011] Preferably, the top surface of the guide frame located outside the rotating block is engraved with an indicator arrow 1, and the bottom surface of the drive cover located outside the groove is engraved with an indicator arrow 2. When the engaging groove of the rotating cap is engaged with the rotating block, the indicator arrow 1 and the indicator arrow 2 coincide with each other.

[0012] Preferably, guide rods are provided on both sides of the bottom of the driving cover, and guide slots are provided on both sides of the top of the guide frame, and the driving cover is connected to the guide frame through the guide rods and the guide slots.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention provides a mobile lightning protection device for a water level sensor. When the water level gradually rises, under the action of buoyancy, the secondary float drives the pressure ring to float upward along the guide rod until the pressure ring and the pressure sensing component are against each other. The pressure sensing component is pressurized and sends a signal to the outside world, indicating that the current water level has reached a predetermined height. If the water level continues to rise above the load-bearing ring, the main float drives the water level sensor to move upward along the guide frame under the action of buoyancy. During this process, the secondary float drives the pressure ring under the action of buoyancy to always keep pressure on the pressure sensing component. The water level sensor is always above the water surface during the entire process. Even if current is accidentally introduced into the water, it will not be introduced into the water level sensor, preventing the current from affecting the water level sensor, thereby improving the life of the water level sensor and ensuring the effectiveness of monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is a front structural schematic diagram of a mobile lightning protection device for a water level sensor of the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of a mobile lightning protection device for a water level sensor of the present invention;

[0018] Figure 3 This is a structural schematic diagram of a mobile lightning protection device for a water level sensor of the present invention when the water level sensor is in an alarm state;

[0019] Figure 4 This is a top view of a guide frame in a mobile lightning protection device for a water level sensor according to the present invention;

[0020] Figure 5 The present invention provides a bottom view of a driving cover in a mobile lightning protection device for a water level sensor.

[0021] In the figure, 1 is a water level sensor, 2 is a guide frame, 3 is a channel, 4 is a water tank, 5 is a load-bearing ring, 6 is a main float, 7 is a guide rod, 8 is a secondary float, 9 is a load-bearing plate, 10 is a pressure ring, 11 is a pressure sensor, 12 is a signal transmitter, 13 is an adjusting screw, 14 is a rotating block, 15 is a cavity, 16 is a driving cover, 17 is a driving wheel, 18 is a driven wheel, 19 is a rotating cap, 20 is a sandwich, 21 is a snap-in groove, 22 is a hand crank, 23 is an indicator arrow one, 24 is an indicator arrow two, 25 is a guide rod, and 26 is a guide slot. DETAILED DESCRIPTION

[0022] In order to better understand the technical content of the present invention, specific embodiments are provided below, and the present invention is further described in conjunction with the accompanying drawings.

[0023] See also Figures 1 to 5 The present invention provides a mobile lightning protection device for a water level sensor, comprising a commercially available water level sensor 1 and a guide frame 2. The center of the guide frame 2 is provided with a channel 3 running through from top to bottom. The water level sensor 1 is arranged in the channel 3. A water trough 4 is provided in front of the guide frame 2. The water trough 4 is communicated with the channel 3. The guide frame 2 extends below the water surface and is fixed to the periphery of the reservoir through a fixing member. Water flows into the guide frame 2 through the water trough 4, so that the liquid level in the guide frame 2 is the same as the external liquid level. A bearing ring 5 supporting the water level sensor 1 is provided below the water level sensor 1. A main float 6 is provided at the bottom of the water level sensor 1. The size of the main float 6 is slightly smaller than that of the channel 3 to reduce The friction between the main float 6 and the inner wall of the channel 3 when it moves up and down with the buoyancy of the water, the main float 6 is provided with a through groove in the center, and the bottom center of the water level sensor 1 is provided with a guide rod 7 that passes downward through the through groove, and the center of the guide rod 7 is movably sleeved with a secondary float 8, the inner diameter of the circular hole in the center of the secondary float 8 is larger than the outer diameter of the guide rod 7, and the bottom of the guide rod 7 of the secondary float 8 is provided with a bearing plate 9 that supports the secondary float 8, the bottom of the water level sensor 1 is provided with a pressure sensing component, and the top surface of the secondary float 8 is provided with a pressure ring 10 that applies pressure to the pressure sensing component, and the pressure ring 10 is movably connected to the guide rod 7, and the guide frame 2 is provided with an adjustment mechanism that drives the bearing ring 5 to move up and down.

[0024] When the water level is below the load ring 5, the water level sensor 1 and the main float 6 abut against the top surface of the load ring 5, the guide rod 7 passes under the load ring 5, and the secondary float 8 abuts against the top surface of the load plate 9 due to gravity. When the water level rises above the secondary float 8, under the action of buoyancy, the secondary float 8 drives the pressure ring 10 to float upward along the guide rod 7 until the pressure ring 10 abuts against the pressure sensing component. The pressure sensing component is compressed and sends a signal to the outside world, indicating that the current water level has reached the predetermined height. If the water level continues to rise above the load ring 5, the main float 6, under the action of buoyancy, drives the water level sensor 1 upward along the guide frame 2. During this process, the secondary float 8, under the action of buoyancy, drives the pressure ring 10 to always keep pressure on the pressure sensing component. When the water level drops, the main float 6 and water level sensor 1 fall back onto the load ring 5, and the pressure ring 10 and secondary float 8 fall back onto the load plate 9. The load ring 5, main float 6, guide rod 7, secondary float 8, and pressure ring 10 are all made of non-conductive materials. Water level sensor 1 remains above the water surface throughout the entire process. Even if current is accidentally introduced into the water, it will not be transmitted into water level sensor 1, preventing the current from affecting water level sensor 1. This improves the life of water level sensor 1 and ensures effective monitoring. Water level sensor 1 can be removed from the top of guide frame 2 for easy replacement.

[0025] The pressure sensing component includes a commercially available pressure sensor 11 and a signal transmitter 12. The pressure sensor 11 is provided at the bottom of the water level sensor 1 above the through groove. The signal transmitter 12 is installed inside the water level sensor 1. The pressure sensor 11 is connected to the signal transmitter 12. The secondary float 8 drives the pressure ring 10 upward through buoyancy to apply pressure to the pressure sensor 11, and the pressure sensor 11 sends the signal to the external receiving end through the signal transmitter 12.

[0026] The adjustment mechanism includes an adjusting screw 13 and a rotating block 14. Vertical cavities 15 are opened on both sides of the guide frame 2. The cavity 15 is connected to the channel 3. The adjusting screw 13 is installed in each of the cavities 15. The two ends of the adjusting screw 13 are rotatably connected to the inner wall of the cavity 15. The rotating block 14 is located on both sides of the top of the guide frame 2. The rotating block 14 is coaxially fixedly connected to the adjusting screw 13 through a connecting shaft, and the two sides of the carrying ring 5 are respectively threadedly connected to the adjusting screw 13.

[0027] A driving mechanism that drives the adjusting mechanism to move synchronously is also provided above the guide frame 2. The driving mechanism includes a driving cover 16, a driving wheel 17, a driven wheel 18 and a rotating cap 19. A sandwich 20 is provided in the center of the driving cover 16. The driving wheel 17 is rotatably connected to the upper and lower inner walls of the sandwich 20 through a rotating shaft. Grooves are provided on both sides of the bottom surface of the driving cover 16. The rotating cap 19 is placed in the groove and rotatably connected to the inner wall of the groove. A snap-fit ​​groove 21 matching the rotating block 14 is provided at the bottom of the rotating cap 19. The driven wheel 18 is located on both sides of the driving wheel 17. The driven wheel 18 is rotatably connected to the upper and lower inner walls of the sandwich 20 through a rotating shaft. The driven wheel 18 is connected to the driving wheel 17 through a transmission chain. The driven wheel 18 is coaxially connected to the rotating cap 19 one by one. The top of the driving cover 16 is also provided with a power mechanism that drives the driving wheel 17 to rotate.

[0028] The power mechanism includes a hand crank 22, and the hand crank 22 is coaxially connected to the driving wheel 17 through a connecting shaft.

[0029] The rotating block 14 is a regular quadrangular prism.

[0030] Put the driving cover 16 on the top of the guide frame 2, and engage the engaging groove 21 with the rotating block 14. The driving wheel 17 is driven to rotate by the hand crank 22. The driving wheel 17 drives the driven wheels 18 on both sides to rotate synchronously through the transmission chain. The driven wheel 18 drives the rotating block 14 to rotate through the rotating cap 19. The rotating block 14 drives the adjusting screws 13 on both sides to rotate synchronously, thereby driving the carrying ring 5 to move up and down to adjust the height of the carrying ring 5 (that is, the alarm liquid level of the water level sensor 1) as needed.

[0031] The top surface of the guide frame 2 located outside the rotating block 14 is engraved with an indicator arrow 1 23, and the bottom surface of the drive cover 16 located outside the groove is engraved with an indicator arrow 2 24. When the engaging groove 21 of the rotating cap 19 is engaged with the rotating block 14, the indicator arrow 1 23 and the indicator arrow 2 24 coincide with each other.

[0032] Guide rods 25 are provided on both sides of the bottom of the driving cover 16, and guide slots 26 are provided on both sides of the top of the guide frame 2. The driving cover 16 is connected to the guide frame 2 through the guide rods 25 and the guide slots 26. The length of the guide rods 25 is greater than the height of the rotating block 14.

[0033] When the water level sensor 1 needs to be replaced, the drive cover 16 must be removed from the guide frame 2 first. During the replacement process, the hand crank 22 may be accidentally touched and rotated. At this time, the angles of the rotating cap 19 of the top cover and the rotating block 14 do not match, and the connection cannot be completed. Therefore, by setting the indicator arrows 1 and 2, the rotating blocks 14 on both sides can be manually rotated at the same time to align any corner of the rotating block 14 of the regular quadrangular prism with the indicator arrow 1 23, and then the hand crank 22 can be turned to connect the regular quadrangular prism in the rotating cap 19. Any corner of the groove 21 is aligned with the indicator arrow 24. At this time, the top cover is pressed onto the guide frame 2 through the cooperation of the guide rod 25 and the guide slot 26, and the locking of the rotating cap 19 and the rotating block 14 can be completed. In order to improve the accuracy of the locking, the size of the locking groove 21 can be set to be slightly larger than the size of the rotating block 14. Although there will be a slight gap between the two when locking, when the locking groove 21, which is also a regular quadrangular prism, rotates, the inner wall will press against the outer wall of the rotating block 14, thereby driving the rotating block 14 to rotate.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mobile lightning protection device for a water level sensor, comprising a water level sensor and a guide frame fixed around a reservoir, characterized in that: The center of the guide frame is provided with a channel running through from top to bottom, the water level sensor is provided in the channel, a water trough is provided in front of the guide frame, the water trough is connected to the channel, a bearing ring for supporting the water level sensor is provided below the water level sensor, a main float is provided at the bottom of the water level sensor, a through groove is provided at the center of the main float, a guide rod passing through the through groove downward is provided at the bottom center of the water level sensor, a secondary float is movably sleeved at the center of the guide rod, a bearing plate for supporting the secondary float is provided at the bottom of the guide rod, a pressure sensing component is provided at the bottom of the water level sensor, a pressure ring for applying pressure to the pressure sensing component is provided on the top surface of the secondary float, the pressure ring is movably connected to the guide rod, and the guide frame is provided with an adjustment mechanism for driving the bearing ring to move up and down.

2. A mobile lightning protection device for a water level sensor according to claim 1, characterized in that: The pressure sensing component includes a pressure sensor and a signal transmitter. The pressure sensor is provided with a water level sensor bottom above the through slot. The signal transmitter is installed inside the water level sensor. The pressure sensor is connected to the signal transmitter.

3. The mobile lightning protection device for a water level sensor according to claim 1, characterized in that: The adjusting mechanism includes an adjusting screw and a rotating block. Vertical cavities are opened on both sides of the guide frame. The adjusting screws are installed in the cavities. Both ends of the adjusting screws are rotatably connected to the inner walls of the cavities. The rotating blocks are located on both sides of the top of the guide frame. The rotating blocks are coaxially fixedly connected to the adjusting screw through a connecting shaft, and both sides of the carrying ring are threadedly connected to the adjusting screw respectively.

4. A mobile lightning protection device for a water level sensor according to claim 3, characterized in that: A driving mechanism is also provided above the guide frame to drive the adjusting mechanism to move synchronously, and the driving mechanism includes a driving cover, a driving wheel, a driven wheel and a rotating cap. A mezzanine is provided in the center of the driving cover, and the driving wheel is rotatably connected to the upper and lower inner walls of the mezzanine through a rotating shaft. Grooves are provided on both sides of the bottom surface of the driving cover, and the rotating cap is rotatably connected to the inner wall of the groove. A clamping groove matching the rotating block is provided at the bottom of the rotating cap. The driven wheel is located on both sides of the driving wheel, and the driven wheel is rotatably connected to the upper and lower inner walls of the mezzanine through a rotating shaft. The driven wheel is connected to the driving wheel through a transmission chain, and the driven wheel is coaxially connected to the rotating cap one by one. The top of the driving cover is also provided with a power mechanism that drives the driving wheel to rotate.

5. The mobile lightning protection device for a water level sensor according to claim 4, characterized in that: The power mechanism includes a hand crank, and the hand crank is coaxially connected to the driving wheel through a connecting shaft.

6. The mobile lightning protection device for a water level sensor according to claim 4, characterized in that: The rotating block is a regular quadrangular prism.

7. The mobile lightning protection device for a water level sensor according to claim 4, characterized in that: The top surface of the guide frame located outside the rotating block is engraved with an indicator arrow 1, and the bottom surface of the drive cover located outside the groove is engraved with an indicator arrow 2. When the engaging groove of the rotating cap is engaged with the rotating block, the indicator arrow 1 and the indicator arrow 2 coincide with each other.

8. The mobile lightning protection device for a water level sensor according to claim 4, characterized in that: Guide rods are provided on both sides of the bottom of the driving cover, and guide slots are provided on both sides of the top of the guide frame. The driving cover is connected to the guide frame through the guide rods and the guide slots.

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