A monitoring and early warning device and method for riverbed or seabed scour

Abstract

This invention provides a monitoring and early warning device for riverbed or seabed erosion, comprising a power supply unit, an alarm unit, and a sensing unit. The power supply unit is electrically connected to the alarm unit, which is used for early warning. The sensing unit is disposed within the bed and controls the circuit connection between the power supply unit and the alarm unit based on the amount of erosion. The sensing unit includes a mounting component, a baffle, and a sliding rod. The mounting component has an internal cavity, and the lower end of the baffle is rotatably connected to the outer wall of the mounting component. The mounting component has a through hole communicating with the cavity. The sliding rod is movably disposed in the through hole, with one end connected to the baffle, and the other end of the sliding rod located in the cavity, with a first contact point at that end. The first contact point contacts or separates from a second contact point within the cavity to connect or disconnect the circuit between the power supply unit and the alarm unit. This invention solves the problem of monitoring and early warning of seabed or riverbed erosion. This invention also provides an early warning method using the aforementioned monitoring and early warning device.

Description

Technical Field

[0001] The present invention relates to the field of monitoring and early warning technology, and in particular to a monitoring and early warning device and method for riverbed or seabed scouring. Background Art

[0002] The erosion of riverbed and seabed soil poses a very important safety problem for cross-river and cross-sea bridges. The erosion of the bed can cause the bridge piers to become unstable and damaged, which will cause serious safety problems for the bridge. In severe cases, it can even cause the bridge to collapse. Therefore, it becomes very necessary to monitor the erosion of the riverbed or seabed.

[0003] Although there are such monitoring devices and methods in the prior art, such as using sensors and other means for monitoring, the existing monitoring means have the problems of high cost and relatively complex structure.

[0004] In summary, there is an urgent need for a monitoring and early warning device and method for riverbed or seabed scour to solve the problems existing in the prior art. Summary of the invention

[0005] The present invention aims to provide a monitoring and early warning device for riverbed or seabed scour, aiming to solve the problem of riverbed or seabed scour monitoring. The specific technical solution is as follows:

[0006] A monitoring and early warning device for riverbed or seabed scouring, comprising a power supply unit, an alarm unit and a sensing unit, wherein the power supply unit is electrically connected to the alarm unit, the alarm unit is used for early warning, and the sensing unit is arranged in the bed body and controls the on-off of the circuit between the power supply unit and the alarm unit according to the scouring amount of the bed body;

[0007] The sensing unit includes a mounting piece, a baffle and a sliding rod. A cavity is provided inside the mounting piece. The lower end of the baffle is rotatably connected to the outer wall of the mounting piece. A through hole connecting the cavity is provided on the mounting piece. The sliding rod is movably arranged in the through hole and one end is connected to the baffle. The other end of the sliding rod is located in the cavity and a first contact is provided at the end. The first contact contacts the second contact in the cavity to realize circuit connection between the power supply unit and the alarm unit. The first contact is separated from the second contact to realize circuit disconnection between the power supply unit and the alarm unit.

[0008] Preferably in the above technical solution, the sensing unit further comprises an elastic member, two ends of the elastic member respectively abut against the outer wall of the mounting member and the baffle, and the elastic member can drive the baffle to rotate relative to the mounting member.

[0009] Preferably in the above technical solution, the elastic member is a spring, and the spring is sleeved on the sliding rod.

[0010] Preferably in the above technical solution, both ends of the through hole are provided with sealing members, the sliding rod passes through two of the sealing members in sequence, and the sealing members are used to seal the gap between the sliding rod and the mounting member.

[0011] Preferably in the above technical solution, a locking hole is provided on the sliding rod, and a locking member is inserted into the locking hole to limit the sliding rod; the locking member is connected to a pull wire, and the pull wire is used to pull the locking member out of the locking hole.

[0012] Preferably in the above technical solution, a fixing rod is provided in the cavity of the mounting member, and the second contact is arranged on the fixing rod.

[0013] Preferably in the above technical solution, the rotation connection point between the baffle and the outer wall of the mounting member is located higher than the lower end point of the mounting member.

[0014] Preferably in the above technical solution, the warning unit includes an indicator, and the indicator is one of an indicator light or an alarm.

[0015] Preferably in the above technical solution, the power supply unit is a photovoltaic power supply module.

[0016] The present invention also provides a method for early warning using the above monitoring and early warning device:

[0017] The mounting piece and the baffle are buried together in the bed of the riverbed or the seabed. Under the action of the bed resistance, the first contact and the second contact are in a separated state. At this time, the circuit between the early warning unit and the power supply unit is not connected, and the early warning unit does not issue an early warning.

[0018] When the riverbed or seabed is washed to the set warning position, the baffle loses the resistance of the bed, the first contact and the second contact come into contact, and the circuit between the warning unit and the power supply unit is connected, and the warning unit issues an alarm.

[0019] The application of the technical solution of the present invention has the following beneficial effects:

[0020] The monitoring and early warning device of the present invention utilizes the resistance of the bed soil to keep the spring in a compressed state, that is, the first contact and the second contact are separated. At this time, the circuit is not connected and the monitoring and early warning device does not issue an early warning; when the bed soil is washed away, the spring will extend to drive the baffle and the sliding rod to move, causing the first contact and the second contact to contact, at this time the circuit is connected, and the monitoring and early warning device issues an early warning; the monitoring and early warning device of the present invention has a simple and reliable structure, and solves the problem of seabed or riverbed scouring monitoring and early warning.

[0021] The monitoring and early warning device of the present invention has seals at both ends of the through hole, which keep the environment of the cavity in the mounting part dry, prevent water from entering the cavity and causing a circuit short circuit, affecting the normal operation of the early warning monitoring device, and ensure the reliability of the device.

[0022] In the monitoring and early warning device of the present invention, the position of the rotational connection point between the baffle and the outer wall of the mounting part is higher than the lower end point of the mounting part. When the bed body is washed to reach the early warning setting value, the baffle plate can be rotated so that the first contact and the second contact contact to give an early warning. However, at this time, the mounting part is still inserted into the bed body, which effectively prevents the mounting part from falling down or being washed away by the water flow before the early warning setting value, thereby ensuring that the device can work normally and reliably.

[0023] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0025] Figure 1 It is a schematic diagram of the disconnected state of the monitoring and early warning device of the present invention;

[0026] Figure 2 It is a schematic diagram of the closed state of the monitoring and early warning device of the present invention;

[0027] Figure 3 yes Figure 1 The structural diagram at A in the middle;

[0028] Among them, 1. power supply unit, 2. indicator, 3. bed surface, 4. fixing rod, 5. mounting part, 6. baffle, 7. pull wire, 8. sliding rod, 9. spring, 10. locking part, 11. sealing part. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below, and preferred embodiments of the present invention are provided. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0031] Embodiment 1:

[0032] See also Figure 1-3A monitoring and early warning device for riverbed or seabed scouring comprises a power supply unit 1, an alarm unit and a sensing unit, wherein the power supply unit 1 is electrically connected to the alarm unit, the alarm unit is used for early warning, and the sensing unit is arranged in the bed body and controls the on-off of the circuit between the power supply unit 1 and the alarm unit according to the scouring amount of the bed body (i.e., the bed body soil).

[0033] See also Figure 1 and Figure 3 The sensing unit includes a mounting member 5, a baffle 6 and a sliding rod 8. A cavity is provided inside the mounting member 5. In this embodiment, the mounting member is preferably a hollow cylindrical pile. The lower end of the baffle 6 is rotatably connected to the outer wall of the mounting member 5 (preferably hinged). A through hole connecting the cavity is provided on the mounting member 5. The sliding rod 8 is movably arranged in the through hole and one end is connected to the baffle 6. The other end of the sliding rod 8 is located in the cavity and a first contact is provided at the end. The first contact contacts the second contact in the cavity to realize circuit connection between the power supply unit 1 and the alarm unit. The first contact is separated from the second contact to realize circuit disconnection between the power supply unit 1 and the alarm unit.

[0034] See also Figure 3 The sensing unit further includes an elastic member, two ends of which respectively abut against the outer wall of the mounting member 5 and the baffle 6 , and the elastic member can drive the baffle 6 to rotate relative to the mounting member 5 .

[0035] Preferably, the elastic member is a spring 9 , and the spring 9 is sleeved on the sliding rod 8 .

[0036] Both ends of the through hole are provided with sealing members 11, and the sliding rod 8 passes through the two sealing members 11 in sequence. The sealing members 11 are used to seal the gap between the sliding rod 8 and the mounting member 5. The provision of the sealing members can effectively ensure that the interior of the cavity is a dry space, prevent water from entering the cavity and causing a short circuit, and affect the normal operation of the early warning monitoring device.

[0037] The sliding rod 8 is provided with a locking hole, and the locking member 10 is inserted into the locking hole to limit the sliding rod 8; the locking member 10 is connected to the pull wire 7, and the pull wire 7 is used to pull the locking member 10 out of the locking hole.

[0038] In this embodiment, the locking member is preferably a pin shaft. Before the monitoring and early warning device is installed, the locking member is inserted into the locking hole. At this time, the spring 9 is in a compressed state, and the sliding rod 8 has a tendency to move outward to push the baffle to rotate. The locking member in the locking hole will contact the seal in the cavity, and the movement of the sliding rod is limited by the contact between the seal and the locking member.

[0039] Preferably, a fixing rod 4 is provided in the cavity of the mounting member 5 , and the second contact is provided on the fixing rod 4 .

[0040] The position of the rotation connection point between the baffle 6 and the outer wall of the mounting member 5 is higher than the lower end point of the mounting member 5. The purpose of such a setting is that when the bed body is washed to the warning setting value, the baffle can rotate so that the first contact and the second contact contact to give a warning, but at this time the mounting member is still inserted into the bed body, effectively preventing the mounting member from falling down or being washed away by the water flow before the warning setting value.

[0041] The warning unit shown includes an indicator 2, which is an indicator light or an alarm. In this embodiment, the indicator light is preferred.

[0042] The power supply unit 1 is a photovoltaic power supply module. Figure 1 The positive pole and negative pole of the photovoltaic power supply module are connected to the first contact and the second contact respectively through wires, and the indicator light is set on one of the wires. When the first contact and the second contact are in contact and closed, a current loop is formed, and the indicator light lights up as a warning.

[0043] Preferably, the mounting parts, baffles, sliding rods, springs, and sealing parts should be made of corrosion-resistant and rust-resistant materials, or be subjected to corrosion-resistant and rust-resistant treatments.

[0044] The technical solution of this embodiment is specifically:

[0045] Insert the locking piece into the locking hole, and the spring is in a compressed state (the first contact and the second contact are not in contact at this time); install the mounting piece and the baffle together into the bed of the riverbed or seabed, such as Figure 1 As shown, the locking piece is pulled out of the locking hole by pulling the wire. At this time, the sliding rod loses the restriction of the locking piece, and the spring remains in a compressed state only under the resistance of the bed soil. At this time, the first contact and the second contact are not in contact, the circuit is not connected, and the indicator light is not on.

[0046] When the riverbed or seabed is washed to the set warning position, the baffle loses the resistance of the bed soil, the spring will extend and drive the sliding rod to move, and the baffle rotates under the drive of the spring so that the first contact and the second contact contact, the circuit is connected, and the indicator light lights up for warning.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A monitoring and early warning device for riverbed or seabed scour, characterized in that: It comprises a power supply unit (1), an alarm unit and a sensing unit, wherein the power supply unit (1) is electrically connected to the alarm unit, the alarm unit is used for early warning, and the sensing unit is arranged in the bed body and controls the on-off of the circuit between the power supply unit (1) and the alarm unit according to the flushing amount of the bed body; The sensing unit comprises a mounting member (5), a baffle (6) and a sliding rod (8); a cavity is provided inside the mounting member (5); the lower end of the baffle (6) is rotatably connected to the outer wall of the mounting member (5); a through hole connected to the cavity is provided on the mounting member (5); the sliding rod (8) is movably arranged in the through hole and one end is connected to the baffle (6); the other end of the sliding rod (8) is located in the cavity and a first contact is provided on the other end; the first contact contacts a second contact in the cavity to realize circuit connection between the power supply unit (1) and the alarm unit; the first contact is separated from the second contact to realize circuit disconnection between the power supply unit (1) and the alarm unit.

2. The monitoring and early warning device for riverbed or seabed scour according to claim 1 is characterized in that: The sensing unit further comprises an elastic member, two ends of which respectively abut against the outer wall of the mounting member (5) and the baffle (6), and the elastic member can drive the baffle (6) to rotate relative to the mounting member (5).

3. The monitoring and early warning device for riverbed or seabed scour according to claim 2 is characterized in that: The elastic member is a spring (9), and the spring (9) is sleeved on the sliding rod (8).

4. The monitoring and early warning device for riverbed or seabed scour according to claim 3 is characterized in that: Both ends of the through hole are provided with sealing members (11), and the sliding rod (8) passes through two of the sealing members (11) in sequence. The sealing members (11) are used to seal the gap between the sliding rod (8) and the mounting member (5).

5. The monitoring and early warning device for riverbed or seabed scour according to claim 4, characterized in that: The sliding rod (8) is provided with a locking hole, and the locking member (10) is inserted into the locking hole to limit the sliding rod (8); the locking member (10) is connected to the pull wire (7), and the pull wire (7) is used to pull the locking member (10) out of the locking hole.

6. The monitoring and early warning device for riverbed or seabed scour according to claim 1, characterized in that: A fixing rod (4) is arranged in the cavity of the mounting member (5), and the second contact point is arranged on the fixing rod (4).

7. The monitoring and early warning device for riverbed or seabed scour according to claim 1, characterized in that: The position of the rotation connection point between the baffle (6) and the outer wall of the mounting member (5) is higher than the lower end point of the mounting member (5).

8. The monitoring and early warning device for riverbed or seabed scour according to claim 1, characterized in that: The warning unit comprises an indicator (2), and the indicator (2) is one of an indicator light or an alarm.

9. The monitoring and early warning device for riverbed or seabed scour according to claim 1, characterized in that: The power supply unit (1) is a photovoltaic power supply module.

10. A method for early warning using the monitoring and early warning device for riverbed or seabed scour according to any one of claims 1 to 9, characterized in that: The mounting piece and the baffle are buried together in the bed of the riverbed or the seabed. Under the action of the bed resistance, the first contact and the second contact are in a separated state. At this time, the circuit between the early warning unit and the power supply unit is not connected, and the early warning unit does not issue an early warning. When the riverbed or seabed is washed to the set warning position, the baffle loses the resistance of the bed, the first contact and the second contact come into contact, and the circuit between the warning unit and the power supply unit is connected, and the warning unit issues an alarm.

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