A seashore rip current velocity monitoring and alarm device and monitoring method thereof

Abstract

The present invention relates to the technical field of offshore current monitoring and alarm, and in particular to a seashore offshore current flow velocity monitoring and alarm device and a monitoring method thereof, comprising a mounting bracket, a mounting mechanism, a monitoring mechanism, a rotating assembly, a matching assembly and an alarm assembly; the mounting bracket is fixedly mounted at a suitable position on the seashore, the mounting mechanism is mounted on the mounting bracket, and the mounting mechanism is used to mount the monitoring mechanism and the rotating assembly; the monitoring mechanism is mounted inside the mounting mechanism, and the monitoring mechanism drives the rotating assembly to rotate under the push of the offshore current; the rotating assembly is mounted on the monitoring assembly, and the rotating assembly transmits different signals to the alarm assembly according to the flow velocity of the offshore current; the matching assembly is mounted on the rotating assembly, and the matching assembly is used to connect the rotating assembly and the alarm assembly; the alarm assembly is mounted on the mounting mechanism, and the alarm mechanism is used to alarm when an offshore current is generated, and to issue warnings of different degrees according to different flow velocities.

Description

Technical Field

[0001] The invention relates to the technical field of rip current monitoring and alarm, and in particular to a seashore rip current velocity monitoring and alarm device and a monitoring method thereof. Background Art

[0002] The rip current velocity monitoring and alarm device is a device used to monitor the velocity of water flow in nearshore areas. It is mainly used to prevent seaside safety accidents, especially to prevent the dangers caused by rip currents. The device identifies the location and intensity of rip currents by monitoring the velocity and direction of the water flow in real time. Once the rip current reaches a dangerous speed, it will trigger an alarm to warn beach visitors and rescuers. Installing this device in crowded seaside areas can improve tourist safety and reduce the occurrence of accidents. In sea areas with high mobility such as surfing areas, additional safety protection is provided for participants in water activities by monitoring water flow changes. This device has gradually been used in some popular beaches with dense crowds. In the future, artificial intelligence technology will be used to further improve the monitoring and early warning capabilities of rip currents, providing more reliable protection for beach safety.

[0003] Existing offshore current velocity monitoring and alarm devices rely on sensors, which face problems such as high cost and poor long-term stability. The sensors are immersed in seawater for a long time and are easily affected by seawater corrosion, seaweed and shell attachment, which increases their failure rate and maintenance costs.

[0004] In view of the above situation, in order to overcome the above technical problems, the present invention designs a seashore rip current velocity monitoring and alarm device and a monitoring method thereof, which solve the above technical problems. Summary of the invention

[0005] The technical purpose to be achieved by the present invention is to design a seashore rip current velocity monitoring and alarm device and a monitoring method thereof, to distinguish rip currents from normal waves through the ratchet principle, to judge the degree of hazard through the centrifugal force generated by the water velocity, and then to issue different levels of warnings to the people playing around, thereby protecting people's safety.

[0006] In order to achieve the above technical objectives, the present invention provides the following technical solutions:

[0007] A seashore rip current velocity monitoring and alarm device, the main structure of which includes a mounting bracket, a mounting mechanism, a monitoring mechanism, a rotating component, a matching component and an alarm component. The device can effectively monitor the velocity of the rip current and issue a warning when necessary, so that safety measures can be taken in time to avoid potential dangers in seashore activities.

[0008] The mounting bracket is fixed at a suitable location on the seashore, usually in an area where the offshore current can be stably and clearly monitored. The function of the mounting bracket is to provide a firm support for the entire device, ensuring that the device can remain stable and continue to work effectively when it is impacted by seawater or wind and waves. The material of the bracket is generally selected to be corrosion-resistant to adapt to the salt spray and humidity in the marine environment.

[0009] The mounting bracket is equipped with a mounting mechanism to fix the monitoring mechanism and the rotating assembly. The mounting mechanism is reasonably designed to ensure the accurate installation of the monitoring mechanism and facilitate maintenance or replacement in the later stage. The monitoring mechanism is the core component of the device. It is installed inside the mounting mechanism and has a sensitive flow rate monitoring function. When an offshore current occurs, the monitoring mechanism will immediately sense the speed of the water flow and drive the rotating assembly in the monitoring mechanism to rotate with the water flow.

[0010] The rotating assembly of the device is located above the monitoring mechanism and can be adjusted accordingly according to the speed of the offshore current. The rotation rate of the rotating assembly is proportional to the speed of the offshore current, that is, the faster the speed, the faster the rotating assembly rotates. Through this mechanism, the rotating assembly transmits the flow rate information to the alarm assembly and transmits different signals according to different flow rates.

[0011] Above the rotating assembly is the mating assembly, which connects the rotating assembly and the alarm assembly so that the signal generated by the rotating assembly can be accurately transmitted to the alarm assembly. The mating assembly is compact and durable, and can work stably for a long time, ensuring the transmission effect of the signal even in extreme weather.

[0012] Finally, the alarm component is an important output part of the entire device, installed above the mounting mechanism. After receiving the signal from the rotating component, the alarm component will issue corresponding alarms according to different flow rates to remind people on the beach to pay attention to the danger of rip currents. The alarm component will issue different levels of warnings according to the flow rate, from slight warnings to high-risk reminders, so that people around can take appropriate safety measures to ensure beach safety.

[0013] The mounting mechanism consists of a rotating cavity, a rotating groove and a limiting slide. Two spherical rotating cavities are arranged inside the mounting mechanism. The rotating groove is located below the rotating cavity, and the limiting slide is designed on the inner surface of the rotating groove to limit and guide the movement trajectory of the rotating parts, thereby preventing the parts from deflecting or getting stuck during high-speed rotation. This structural design improves the overall stability and flexibility of the device, and helps to more accurately monitor the flow velocity changes of offshore currents.

[0014] The installation mechanism also includes three parts: a through cavity, a control cavity and a ratchet to ensure the effective operation of the overall structure. The through cavity is set in the middle of the rotating cavity, presenting a special shape with large ends and a small middle. This design facilitates the fluid to pass through the cavity and flow inside the device, further improving the sensitivity and accuracy of monitoring. The control cavity is located above the rotating cavity and serves as the main space for adjustment and control. The inner side is arranged with a circular array of ratchets, which effectively prevents the monitoring components from moving in reverse or rotating under the drive of offshore currents by controlling the rotation direction and resistance, so that the device can respond to water flow changes more stably and accurately.

[0015] The monitoring mechanism is mainly composed of a rotating shaft, a limit ball, a rotating fan blade, a rotating disk, a mounting groove and a control component, forming a complete flow velocity sensing device. The rotating shaft is the core component of the monitoring mechanism and is firmly installed inside the mounting mechanism to ensure that it can rotate smoothly when impacted by offshore currents. The limit ball is located at the bottom of the rotating shaft, and its function is to limit the sliding or excessive swinging of the rotating shaft to improve the stability of monitoring. The rotating fan blade is located in the middle section of the rotating shaft and rotates through the push of the offshore current to reflect the change in water flow speed. The rotating disk is installed at the top of the rotating shaft, and its function is to transmit the movement of the rotating shaft to the subsequent alarm component. In addition, a mounting groove is opened on the side of the rotating disk to accommodate the control component. The control component is placed in the mounting groove and is responsible for adjusting and recording the rotation angle and direction of the rotating shaft, so that the entire monitoring mechanism can maintain accurate response and data transmission under different flow conditions. Through the coordinated action of various components, the monitoring mechanism can keenly perceive and feedback the offshore flow rate.

[0016] The control assembly consists of a mounting block, a movable shaft, a pawl block and a reset spring to ensure that the monitoring mechanism maintains efficient operation during the monitoring process. The mounting block is firmly mounted inside the mounting slot, providing a stable foundation for the assembly. The movable shaft is mounted on the side of the mounting block, allowing the pawl block to rotate or swing flexibly. The pawl block is fixed on the movable shaft and can cooperate with the surrounding gear structure. The two ends of the reset spring are respectively fixed on the mounting block and the pawl block. When the pawl block is displaced due to the offshore current, the reset spring can quickly pull it back to its original position, ensuring that the monitoring mechanism returns to its initial state and ensuring the continuous and accurate monitoring effect of the device. This structural design improves the sensitivity and reset speed of the control assembly, and effectively improves the responsiveness of the entire device.

[0017] The rotating assembly consists of a lower turntable, a fixed block, a control spring, a centrifugal block and a connecting slide bar to ensure the normal operation of the flow monitoring device under the influence of offshore currents. The lower turntable is installed on the top of the entire rotating assembly, and its function is to provide a stable support structure for the rotating assembly. The fixed block is located at the center of the lower turntable to ensure that the device remains stable when subjected to external forces and serves as a support point for the control spring. The control spring is installed on the outer surface of the fixed block to provide support and elastic force for the centrifugal block. When the flow rate increases, the control spring pushes the centrifugal block to expand in response to changes in water flow. The centrifugal block is located at one end of the control spring and has the ability to move flexibly. It can generate centrifugal force as the water flow changes, thereby realizing the transmission of flow rate. The connecting slide bar is set on both sides of the centrifugal block to ensure that the direction of the centrifugal block is controlled when it slides under the force, ensuring the coordinated operation of the rotating assembly as a whole, so that the flow rate monitoring is accurate and reliable.

[0018] The mating assembly consists of a mating ring, a guide ring, a slide block and a connecting slide groove, which is designed to ensure good connection and coordinated operation between the rotating assembly and other components. The mating ring is firmly installed on the outside of the rotating assembly and serves as the connection point between the rotating assembly and the external structure. The guide ring is installed on the top of the mating ring, and the guide ring is used to transmit electrical signals to the alarm assembly. The slide block is installed on the inner side of the mating ring and has sliding properties. It can provide flexible movement space for the rotating assembly so that it can rotate smoothly when monitoring flow rate. The connecting slide groove is opened on the inner side of the slide block to provide a guiding function for the rotating assembly, ensure that each component can be accurately docked, and improve the overall flexibility and stability of the device. Through these carefully designed components, the mating assembly can effectively improve the response speed and accuracy of the monitoring device, so that it performs well in the monitoring of offshore flow rate.

[0019] The alarm assembly consists of a fixed cover and an alarm. Its main function is to sound the alarm in time to ensure the safety of seaside activities. The fixed cover is installed above the matching assembly to protect and fix the alarm, ensuring its stable operation in various environments. The alarm is installed on the top of the fixed cover and has the ability to emit different levels of warning sounds and lights. When the offshore flow rate reaches the preset threshold, the alarm will emit corresponding sound and light signals according to the change in flow rate to alert people around to potential dangers. This design not only improves the visibility and audibility of the alarm, but also effectively enhances the safety and practicality of the overall device.

[0020] The contact surface of the connecting slide bar and the connecting slide groove is made of conductive material to ensure efficient signal transmission. Such a design can reduce resistance and improve the stability and reliability of signal transmission. At the same time, the upper bottom surface inside the fixed cover is electrically connected to the guide ring, which further improves the signal transmission efficiency. When the rotating component moves due to changes in water flow, the contact between the connecting slide bar and the connecting slide groove will activate signal transmission, and the flow rate information will be transmitted to the alarm component through the conductivity of the conductive material. This design not only improves the response speed of the device, but also ensures that the alarm can accurately and timely sound the alarm to ensure the safety of seaside activities. Therefore, the entire system achieves efficient signal transmission while monitoring the offshore flow rate.

[0021] A method for monitoring the velocity of a coastal rip current, which is applicable to the above-mentioned coastal rip current velocity monitoring and alarm device, and the steps of the method are as follows:

[0022] S1: The installer fixes the mounting bracket on the seashore so that the mounting bracket is completely submerged under the water through the cavity and the alarm is completely above the water. Through the above installation method, the installer installs a seashore rip current velocity monitoring alarm device every 20m on the seashore;

[0023] S2: When a coastal rip current is formed, the coastal rip current velocity monitoring and alarm device in the area will be affected, and the seawater passes through the cavity, driving the rotating blades to rotate so that the rotating assembly rotates according to the water flow velocity;

[0024] S3: The rotation speed of the lower turntable determines the distance between the centrifugal block and the fixed block, so that the contact area between the connecting slide bar and the connecting slide groove changes. The larger the contact area, the greater the offshore current velocity.

[0025] S4: The flow rate obtained by the monitoring mechanism in cooperation with the rotating component is transmitted to the alarm component through the guide ring on the matching component. The alarm component receives the signal and emits sound and light according to the flow rate to warn the surrounding people.

[0026] The beneficial effects of the present invention are as follows:

[0027] 1. The monitoring mechanism of the present invention adopts the ratchet principle to effectively distinguish rip currents from normal waves to improve the safety of coastal areas. In the marine environment, the movement characteristics of rip currents and normal waves are different. Rip currents usually have stronger speed and directionality, which makes them more potentially dangerous. By utilizing the ratchet principle, the device can accurately identify the presence of rip currents when the water flow changes. When a rip current is formed, the change in its flow rate will generate corresponding centrifugal force. The monitoring mechanism of the device senses this change through a rotating component and calculates the flow rate of the rip current based on the speed of the water flow. Utilizing the structural characteristics of the ratchet, the rotating component can convert the water flow velocity into rotational kinetic energy when it is affected by the water flow, thereby more accurately capturing the flow rate changes. This process not only improves the sensitivity of monitoring, but also reduces dependence on environmental factors.

[0028] 2. Once the present invention determines the existence of rip currents and their flow rate, the device will classify the flow rate according to preset standards to assess the degree of hazard in the area. Different flow rates correspond to different risk levels, so the device will issue warnings of corresponding levels through the alarm component. These warnings can alert people playing around through sound and light, prompting them to take necessary safety measures, such as leaving the dangerous area or staying vigilant. In this way, the present invention not only achieves an effective distinction between rip currents and normal waves, but also provides safety guarantees for seaside activities, protecting people's lives and property. Overall, this device has important practical application value in marine environment monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] The above and other aspects of the present invention will now be described, by way of example only, with reference to the accompanying drawings, in which:

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the positions of the monitoring mechanism and the rotating assembly of the present invention;

[0033] Figure 3 It is a cross-sectional view of the rotating assembly and the alarm assembly of the matching assembly of the present invention;

[0034] Figure 4 It is a schematic diagram of the internal structure of the installation mechanism of the present invention;

[0035] Figure 5 It is a schematic diagram of the structure of the monitoring mechanism and the rotating assembly of the present invention;

[0036] Figure 6 It is a schematic diagram of the structure of the control component of the present invention;

[0037] Figure 7 It is a schematic diagram of the structure of the matching components of the present invention;

[0038] Figure 8 It is a structural schematic diagram of the alarm component of the present invention.

[0039] In the figure: 1. mounting bracket; 2. mounting mechanism; 21. rotating cavity; 22. rotating groove; 23. limiting slide groove; 24. through cavity; 25. control cavity; 26. ratchet; 3. monitoring mechanism; 31. rotating shaft; 32. limiting ball; 33. rotating fan blade; 34. rotating disk; 35. mounting groove; 36. control component; 361. mounting block; 362. movable shaft; 363. pawl block; 364. reset spring; 4. rotating component; 41. lower turntable; 42. fixed block; 43. control spring; 44. centrifugal block; 45. connecting slide bar; 5. matching component; 51. matching ring; 52. guide ring; 53. slide rail block; 54. connecting slide groove; 6. alarm component; 61. fixed cover; 62. alarm. DETAILED DESCRIPTION

[0040] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0041] like Figure 1-8 As shown, a seashore rip current velocity monitoring and alarm device, the main structure of which includes a mounting bracket 1, a mounting mechanism 2, a monitoring mechanism 3, a rotating component 4, a matching component 5 and an alarm component 6. This device can effectively monitor the velocity of the rip current and issue a warning when necessary, so that safety measures can be taken in time to avoid potential dangers in seashore activities.

[0042] The mounting bracket 1 is fixed at a suitable location on the seashore, usually in an area where the offshore current can be stably and clearly monitored. The function of the mounting bracket 1 is to provide a firm support for the entire device, ensuring that the device can remain stable and continue to work effectively when it is impacted by seawater or wind and waves. The material of the bracket is generally selected to be corrosion-resistant to adapt to the salt spray and humidity in the marine environment.

[0043] The mounting bracket 1 is provided with a mounting mechanism 2 for fixing the monitoring mechanism 3 and the rotating assembly 4. The mounting mechanism 2 is reasonably designed, which not only ensures the accurate installation of the monitoring mechanism 3, but also facilitates maintenance or replacement in the later stage. The monitoring mechanism 3 is the core component of the device, which is installed inside the mounting mechanism 2 and has a sensitive flow rate monitoring function. When an offshore current occurs, the monitoring mechanism 3 will immediately sense the speed of the water flow and drive the rotating assembly 4 in the monitoring mechanism 3 to rotate with the water flow.

[0044] The rotating assembly 4 of the device is located above the monitoring mechanism 3 and can be adjusted accordingly according to the speed of the offshore current. The rotation rate of the rotating assembly 4 is proportional to the speed of the offshore current, that is, the faster the speed, the faster the rotation speed of the rotating assembly 4. Through this mechanism, the rotating assembly 4 transmits the flow rate information to the alarm assembly 6 and transmits different signals according to different flow rates.

[0045] Above the rotating assembly 4 is the matching assembly 5, which serves to connect the rotating assembly 4 and the alarm assembly 6, so that the signal generated by the rotating assembly 4 can be accurately transmitted to the alarm assembly 6. The matching assembly 5 is compact and durable in design, can work stably for a long time, and can ensure the transmission effect of the signal even in extreme weather.

[0046] Finally, the alarm component 6 is an important output part of the whole device, which is installed above the mounting mechanism 2. After receiving the signal from the rotating component 4, the alarm component 6 will issue corresponding alarms according to different flow rates to remind people on the beach to pay attention to the danger of rip currents. The alarm component 6 will issue different degrees of warnings according to the flow rate, from slight warnings to high-risk reminders, so that people around can take appropriate safety measures to ensure beach safety.

[0047] like Figure 4 As shown, the mounting mechanism 2 is composed of a rotating chamber 21, a rotating groove 22 and a limiting slide groove 23. Two spherical rotating chambers 21 are arranged inside the mounting mechanism 2, the rotating groove 22 is located below the rotating chamber 21, and the limiting slide groove 23 is designed on the inner surface of the rotating groove 22, which plays a role in limiting and guiding the movement trajectory of the rotating component, thereby preventing the component from deflecting or jamming during high-speed rotation. This structural design improves the overall stability and flexibility of the device, and helps to more accurately monitor the flow velocity changes of offshore currents.

[0048] The mounting mechanism 2 also includes three parts: a through cavity 24, a control cavity 25 and a ratchet 26 to ensure the effective operation of the overall structure. The through cavity 24 is arranged in the middle of the rotating cavity 21, presenting a special shape with large ends and a small middle. This design facilitates the fluid to pass through the cavity 24 and flow inside the device, further improving the sensitivity and accuracy of monitoring. The control cavity 25 is located above the rotating cavity 21 and serves as the main space for adjustment and control. The inner side thereof is arranged with a ring array of ratchets 26, which effectively prevents the monitoring components from reverse movement or rotation under the drive of offshore currents by controlling the rotation direction and resistance, so that the device can respond to water flow changes more stably and accurately.

[0049] like Figure 5 As shown, the monitoring mechanism 3 is mainly composed of a rotating shaft 31, a limiting ball 32, a rotating blade 33, a rotating disk 34, a mounting groove 35 and a control component 36, forming a complete flow velocity sensing device. The rotating shaft 31 is the core component of the monitoring mechanism 3, and is firmly installed inside the mounting mechanism 2 to ensure that it can rotate smoothly when impacted by the offshore current. The limiting ball 32 is located at the bottom of the rotating shaft 31, and its function is to limit the sliding or excessive swinging of the rotating shaft 31 to improve the stability of the monitoring. The rotating blade 33 is located in the middle section of the rotating shaft 31, and rotates through the push of the offshore current, thereby reflecting the change in the water flow speed. The rotating disk 34 is installed on the top of the rotating shaft 31, and its function is to transmit the movement of the rotating shaft 31 to the subsequent alarm component 6. In addition, a mounting groove 35 is provided on the side of the rotating disk 34 for accommodating the control component 36. The control component 36 is placed in the mounting groove 35 and is responsible for adjusting and recording the rotation angle and direction of the rotating shaft 31, so that the entire monitoring mechanism 3 can maintain accurate response and data transmission under different flow rate conditions. Through the coordinated action of various components, the monitoring mechanism 3 is able to keenly sense and feedback the offshore flow velocity.

[0050] like Figure 6 As shown, the control assembly 36 is composed of a mounting block 361, a movable shaft 362, a pawl block 363 and a reset spring 364, which ensures that the monitoring mechanism 3 maintains efficient operation during the monitoring process. The mounting block 361 is firmly mounted inside the mounting groove 35, providing a stable foundation for the assembly. The movable shaft 362 is mounted on the side of the mounting block 361, so that the pawl block 363 can be flexibly rotated or swung. The pawl block 363 is fixed on the movable shaft 362 and can cooperate with the surrounding gear structure. The two ends of the reset spring 364 are respectively fixed on the mounting block 361 and the pawl block 363. When the pawl block 363 is displaced due to the push of the offshore current, the reset spring 364 can quickly pull it back to its original position, ensuring that the monitoring mechanism 3 returns to its initial state and ensuring the continuous and accurate monitoring effect of the device. This structural design improves the sensitivity and reset speed of the control assembly 36, and effectively improves the responsiveness of the entire device.

[0051] like Figure 5 As shown, the rotating assembly 4 is composed of a lower turntable 41, a fixed block 42, a control spring 43, a centrifugal block 44 and a connecting slide 45, which ensures that the flow rate monitoring device operates normally under the influence of offshore currents. The lower turntable 41 is installed on the top of the entire rotating assembly 4, and its function is to provide a stable support structure for the rotating assembly 4. The fixed block 42 is located at the center of the lower turntable 41 to ensure that the device remains stable when subjected to external forces and serves as a support point for the control spring 43. The control spring 43 is installed on the outer surface of the fixed block 42 to provide support and elastic force for the centrifugal block 44. When the flow rate increases, the control spring 43 pushes the centrifugal block 44 to expand in response to changes in the water flow. The centrifugal block 44 is located at one end of the control spring 43 and has the ability to move flexibly. It can generate centrifugal force as the water flow changes, thereby realizing the transmission of the flow rate. The connecting slide 45 is arranged on both sides of the centrifugal block 44 to ensure that the direction of the centrifugal block 44 is controlled when it slides under the force, ensuring the coordinated operation of the rotating assembly 4 as a whole, so that the flow rate monitoring is accurate and reliable.

[0052] like Figure 7 As shown, the matching component 5 is composed of a matching ring 51, a guide ring 52, a slide block 53 and a connecting slide groove 54, which is intended to ensure good connection and coordinated operation between the rotating component 4 and other components. The matching ring 51 is firmly mounted on the outside of the rotating component 4, serving as a connection point between the rotating component 4 and the external structure. The guide ring 52 is mounted on the top of the matching ring 51, and the guide ring 52 is used to transmit electrical signals to the alarm component 6. The slide block 53 is mounted on the inner side of the matching ring 51, has sliding properties, and can provide a flexible movement space for the rotating component 4 so that it can rotate smoothly when monitoring the flow rate. The connecting slide groove 54 is opened on the inner side of the slide block 53 to provide a guiding function for the rotating component 4, ensure that each component can be accurately docked, and improve the overall flexibility and stability of the device. Through these carefully designed components, the matching component 5 can effectively improve the response speed and accuracy of the monitoring device, so that it performs well in the monitoring of offshore flow rate.

[0053] like Figure 8 As shown, the alarm component 6 is composed of a fixed cover 61 and an alarm 62, and its main function is to sound an alarm in time to ensure the safety of seaside activities. The fixed cover 61 is installed above the matching component 5 to protect and fix the alarm 62 to ensure its stable operation in various environments. The alarm 62 is installed on the top of the fixed cover 61 and has the ability to emit different levels of warning sounds and lights. When the offshore flow rate reaches the preset threshold, the alarm 62 will emit corresponding sound and light signals according to the change in flow rate to alert people around to potential dangers. This design not only improves the visibility and audibility of the alarm, but also effectively enhances the safety and practicality of the overall device.

[0054] The contact surface of the connecting slide bar 45 and the connecting slide groove 54 is made of conductive material to ensure efficient signal transmission. Such a design can reduce resistance and improve the stability and reliability of signal transmission. At the same time, the upper bottom surface inside the fixed cover 61 is electrically connected to the guide ring 52. The fixed cover 61 is configured as a "cover". The fixed cover 61 is configured as a disc and has a disc-shaped hollow portion below. The upper surface of the hollow portion is electrically connected to the guide ring 52.

[0055] The signal transmission efficiency is further improved. When the rotating component 4 moves due to the change of water flow, the contact between the connecting slide bar 45 and the connecting slide groove 54 will activate the signal transmission, and the flow rate information will be transmitted to the alarm component 6 through the conductivity of the conductor material. This design not only improves the response speed of the device, but also ensures that the alarm 62 can accurately and timely issue an alarm to ensure the safety of seaside activities. Therefore, the entire system achieves efficient signal transmission while monitoring the offshore flow rate.

[0056] A method for monitoring the velocity of a coastal rip current, which is applicable to the above-mentioned coastal rip current velocity monitoring and alarm device, and the steps of the method are as follows:

[0057] S1: The installer fixes the mounting bracket 1 on the seashore so that the cavity 24 is completely submerged under the water surface and the alarm 62 is completely above the water surface. Through the above installation method, the installer installs a seashore rip current velocity monitoring alarm device every 20m on the seashore;

[0058] S2: When a coastal rip current is formed, the coastal rip current velocity monitoring and alarm device in the area will be affected, and the seawater passes through the cavity 24, driving the rotating blades 33 to rotate so that the rotating assembly 4 rotates according to the water flow velocity;

[0059] S3: The rotation speed of the lower turntable 41 determines the distance between the centrifugal block 44 and the fixed block 42, so that the contact area between the connecting slide bar 45 and the connecting slide slot 54 changes. The larger the contact area, the greater the offshore current velocity.

[0060] S4: The flow rate obtained by the monitoring mechanism 3 in cooperation with the rotating component 4 is transmitted to the alarm component 6 through the guide ring 52 on the matching component 5. The alarm component 6 receives the signal and emits sound and light according to the flow rate to warn the surrounding people.

[0061] During the working process of the present invention, the first is the installation stage: the installer fixes the installation bracket 1 on the seashore so that the cavity 24 is completely submerged under the water surface and the alarm 62 is completely above the water surface. Through the above installation method, the installer installs a seashore offshore current velocity monitoring alarm device at every 20m on the seashore;

[0062] Secondly, during use: if there are only normal waves or no waves in the area, the coastal offshore current velocity monitoring alarm device will not work. When normal waves flow from the sea to the seashore, the left rotating blade 33 is driven to rotate clockwise, and the right rotating blade 33 is driven to rotate counterclockwise, and the two ratchets 26 arranged inside the through cavity 25 are arranged in opposite directions, and the ratchets 26 arranged inside the left through cavity 25 are arranged to be obliquely arranged counterclockwise, and the ratchets 26 arranged inside the right through cavity 25 are arranged to be obliquely arranged clockwise, that is, the ratchet block 363 on the left side will get stuck when rotating clockwise in the left through cavity 25, and is allowed to pass when rotating counterclockwise; the right side is opposite,

[0063] It can be seen that when normal waves flow from the sea to the seashore, the pawl blocks 363 and the ratchet teeth 26 on the left and right sides will be stuck to each other and cannot rotate, so the seashore offshore current velocity monitoring and alarm device will not work;

[0064] When an offshore current forms in the area, the offshore current velocity monitoring and alarm device in the area will be affected, and the seawater passes through the cavity 24, driving the rotating blades 33 to rotate so that the rotating assembly 4 rotates according to the water velocity; at this time, the pawl block 363 and the ratchet 26 in the left control assembly 36 are the same counterclockwise setting, so they will not be affected; the pawl block 363 and the ratchet 26 in the right control assembly 36 are the same clockwise setting, so that the control assemblies 36 on both sides can smoothly drive the lower turntable 41 to rotate, and the rotation speed is determined by the velocity of the offshore current, and the two are in a proportional relationship;

[0065] The rotation speed of the lower turntable 41 determines the distance between the centrifugal block 44 and the fixed block 42. The centrifugal block 44 will overcome the control spring 43 and move away from the fixed block 42 under the drive of the lower turntable 41, thereby causing the contact area between the connecting slide bar 45 and the connecting slide groove 54 to change. Since the contact surface between the connecting slide bar and the connecting slide groove 54 is set to a conductive material, the change of this part of the contact area will change the transmission of the electrical signal. The larger the contact area, the greater the offshore current velocity. By setting the running program of the alarm component 6, the signal conversion between the two can be realized: that is, the change in the size of the contact area leads to the change of the electrical signal. The alarm component 6 edits it to realize that the larger the contact area, the higher the hazard level and the corresponding alarm level.

[0066] The flow rate obtained by the monitoring mechanism 3 in cooperation with the rotating component 4 is transmitted to the alarm component 6 through the guide ring 52 on the matching component 5. The alarm component 6 receives the signal and emits sound and light according to the flow rate to warn the surrounding people.

[0067] Various modifications to the present disclosure will be apparent to those of ordinary skill in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Therefore, the present disclosure is not limited to the examples and designs described herein, but should be given the widest scope consistent with the principles and novel features disclosed herein. Although one or more exemplary embodiments of the present disclosure have been described with reference to the accompanying drawings, it will be understood by those of ordinary skill in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present disclosure as defined in the appended claims.

Claims

1. A seashore rip current velocity monitoring and alarm device, characterized in that: It comprises a mounting bracket (1), a mounting mechanism (2), a monitoring mechanism (3), a rotating component (4), a matching component (5) and an alarm component (6); The mounting bracket (1) is fixedly installed at a distance of 30-50 m from the seashore in the direction of the sea, and the mounting mechanism (2) is installed on the mounting bracket (1). The mounting mechanism (2) is used to install the monitoring mechanism (3) and the rotating assembly (4); The monitoring mechanism (3) is installed inside the installation mechanism (2), and the monitoring mechanism (3) drives the rotating component (4) to rotate under the impetus of the offshore current; The rotating component (4) is installed on the monitoring mechanism (3), and the rotating component (4) transmits different signals to the alarm component (6) according to the flow velocity of the offshore current; The mating component (5) is installed on the rotating component (4), and the mating component (5) is used to connect the rotating component (4) and the alarm component (6); The alarm assembly (6) is mounted on the mounting mechanism (2), and the alarm mechanism is used to sound an alarm when an offshore current is generated, and to issue warnings of varying degrees depending on the flow rate; The mounting mechanism (2) comprises a rotating cavity (21), a rotating groove (22) and a limiting sliding groove (23); The rotating chamber (21) is provided inside the mounting mechanism (2), two rotating chambers (21) are provided, the rotating chamber (21) is provided in a spherical shape, the rotating groove (22) is provided below the rotating chamber (21), and the limiting sliding groove (23) is provided on the inner surface of the rotating groove (22); The mounting mechanism (2) further comprises a through cavity (24), a control cavity (25) and a ratchet (26); The through cavity (24) is opened in the middle of the rotating cavity (21), and the through cavity (24) is configured to be large at both sides and small in the middle. The number of the control chambers (25) is two, which are respectively opened on the two rotating chambers (21); the annular array of ratchet teeth (26) is installed on the inner side of the control chamber (25).

2. A seashore rip current velocity monitoring and alarm device according to claim 1, characterized in that: The monitoring mechanism (3) comprises a rotating shaft (31), a limiting ball (32), a rotating fan blade (33), a rotating disk (34), a mounting groove (35) and a control component (36); The rotating shaft (31) is mounted inside the mounting mechanism (2), the limiting ball (32) is arranged at the lower part of the rotating shaft (31), the rotating blade (33) is mounted in the middle of the rotating shaft (31), the rotating disk (34) is mounted on the upper side of the rotating shaft (31), the mounting groove (35) is opened on the side of the rotating disk (34), and the control component (36) is mounted in the mounting groove (35).

3. A seashore rip current velocity monitoring and alarm device according to claim 2, characterized in that: The control assembly (36) comprises a mounting block (361), a movable shaft (362), a ratchet block (363) and a return spring (364). The mounting block (361) is mounted inside the mounting groove (35), the movable shaft (362) is mounted on a side of the mounting block (361), the ratchet block (363) is mounted on the movable shaft (362), and both ends of the return spring (364) are clamped on the mounting block (361) and the ratchet block (363).

4. The device for monitoring and alarming the velocity of a coastal rip current according to claim 1, characterized in that: The rotating assembly (4) comprises a lower rotating disk (41), a fixing block (42), a control spring (43), a centrifugal block (44) and a connecting slide bar (45); The lower turntable (41) is mounted on the monitoring mechanism (3), the fixed block (42) is mounted at the center of the lower turntable (41), the control spring (43) is mounted on the outer side of the fixed block (42), the centrifugal block (44) is mounted on one end of the control spring (43), and the connecting slide bar (45) is arranged on two side surfaces of the centrifugal block (44).

5. A seashore rip current velocity monitoring and alarm device according to claim 4, characterized in that: The mating assembly (5) comprises a mating ring (51), a guide ring (52), a slide rail block (53) and a connecting slide groove (54); The matching ring (51) is mounted on the outside of the rotating assembly (4), the guide ring (52) is mounted on the top of the matching ring (51), the slide rail block (53) is mounted on the inner side of the matching ring (51), and the connecting slide groove (54) is provided on the inner side of the slide rail block (53).

6. A device for monitoring and alarming the velocity of a coastal rip current according to claim 5, characterized in that: The alarm component (6) comprises a fixed cover (61) and an alarm (62), wherein the fixed cover (61) is mounted on the top of the matching component (5), and the alarm (62) is mounted on the top of the fixed cover (61), and the alarm (62) can emit warning sounds and lights of different levels.

7. A seashore rip current velocity monitoring and alarm device according to claim 6, characterized in that: The contact surfaces of the connecting slide bar (45) and the connecting slide groove (54) are configured to be a conductive material, the fixing cover (61) is configured to be disc-shaped and has a disc-shaped hollow portion at the bottom, and the top of the hollow portion is electrically connected to the guide ring (52).

8. A method for monitoring the velocity of a coastal rip current, the method being used in conjunction with a coastal rip current velocity monitoring and alarm device as claimed in any one of claims 1 to 7; characterized in that: The steps of the method are as follows: S1: The installer fixes the installation bracket (1) at the seashore so that the cavity (24) is completely submerged under the water surface and the alarm (62) is completely above the water surface. The installer sets a seashore rip current velocity monitoring alarm device at intervals of 20 m at the seashore; S2: When a coastal rip current is formed, the coastal rip current velocity monitoring and alarm device in this area will be affected, and seawater will pass through the cavity (24), driving the rotating blades (33) to rotate so that the rotating component (4) rotates according to the water flow velocity; S3: The rotation speed of the lower rotating disk (41) determines the distance between the centrifugal block (44) and the fixed block (42), so that the contact area between the connecting slide bar (45) and the connecting slide groove (54) changes. The larger the contact area, the greater the offshore current velocity. S4: The flow velocity obtained by the monitoring mechanism (3) in cooperation with the rotating component (4) is transmitted to the alarm component (6) through the guide ring (52) on the matching component (5). The alarm component (6) receives the signal and emits sound and light according to the flow velocity to warn the surrounding people.

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