Water conservancy detection alarm instrument
By using a movable ruler and float combination design in the water conservancy detection alarm, and using contact sensors to detect the water level, the problem that traditional water level gauge cannot accurately monitor the water level during flood season, achieving accurate monitoring and alarm under high water level conditions.
Patent Information
- Application Number
- CN202421412641.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-06-20
AI Technical Summary
Traditional float water level gauge cannot accurately monitor the water level height during flood season, and cannot continue to obtain water level data when the water level exceeds the installation height of the detection equipment.
A water conservancy detection alarm is designed, using a movable ruler and a float to detect the water level through a contact sensor to ensure that the water level can be accurately monitored when the water level exceeds the installation height of the equipment.
It has achieved continuous monitoring of the water level during the flood season, helping rescue personnel to timely understand the current water level changes, and improving the accuracy and reliability of water conservancy testing.
Smart Images
Figure CN222579386U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of water conservancy detection, in particular to a water conservancy detection alarm instrument. Background Art
[0002] Water conservancy testing includes on-site measurement of water levels in rivers, lakes and groundwater. Water level data is closely related to human social life and production. The planning, design, construction and management of water conservancy projects require water level data. The construction of bridges, ports, waterways, water supply and drainage projects also requires water level data. In flood control and drought relief, water level data is even more important. It is the basis for hydrological forecasts and hydrological intelligence, and is generally measured using water gauges and water level meters.
[0003] A water level gauge, also called a "liquid level gauge" or "liquid surface gauge", is an instrument used to automatically measure and record the water level of rivers, lakes, irrigation canals and other water bodies. According to the sensor principle, it is divided into float type, tracking type, pressure type and reflection type. Among them, the float type water level gauge is based on the principle that the float senses the rise and fall of the water level. There are ordinary water level gauges that use mechanical means to directly drive the float to record the structure. There are telex and digital water level gauges that convert the angular value provided by the float into incremental electrical pulses or binary coded pulses for long-distance transmission. There are also digital sensor water level gauges composed of miniature floats and many reed switches. The most widely used is the mechanical water level gauge.
[0004] The traditional float-type water level gauge uses a float to sense the water level. Its working principle is that the water level sensor measuring wheel is installed on the encoder input shaft, one end of the wire rope is connected to the float and the other end is connected to the weight. The wire rope is wrapped around the measuring wheel. When the liquid level changes, the float rises and falls with the change of the liquid level. The wire rope drives the measuring wheel to rotate, and the encoder outputs the corresponding real-time water level value. However, during the flood season, when the real-time water level exceeds the encoder, the rise and fall of the float can no longer help the encoder obtain the water level height, and the accurate water level height cannot be obtained. For this reason, we proposed a water conservancy detection alarm. Utility Model Content
[0005] The purpose of the utility model is to provide a water conservancy detection alarm to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, a water conservancy detection alarm instrument comprises a detection alarm instrument body, an encoder is fixedly installed inside the detection alarm instrument body, a measuring wheel is rotatably connected to the outer side of the detection alarm instrument body, one end of the measuring wheel is fixedly connected to the input end of the encoder, a positioning sleeve is rotatably connected to the outer wall of the detection alarm instrument body, the positioning sleeve is located on the outer side of the measuring wheel, a movable ruler is slidably connected to the inner side of the positioning sleeve, one end of the movable ruler is meshed with the outer wall of the measuring wheel, a float is fixedly connected to the bottom of the movable ruler, and a plurality of contact sensors distributed in a ring are arranged on the outer side of the axis of the measuring wheel on the upper side of the outer wall of the detection alarm instrument body.
[0007] Further: the number of the contact sensors is not less than four.
[0008] Furthermore: the distance between one end of the positioning sleeve and the outer wall of the detection alarm body is shorter than the distance that the input end of the contact sensor extends out of the outer wall of the detection alarm body.
[0009] Furthermore: the inner wall of the positioning sleeve and the outer wall of the movable ruler are both smooth surfaces.
[0010] Furthermore: the shape of the float is cylindrical, and a conical base is provided at the bottom of the float.
[0011] Furthermore: the center of gravity of the movable ruler and the float is located on the vertical axis at the axis center of the float cross section.
[0012] Furthermore: a power supply module and an alarm module are arranged inside the main body of the detection alarm device.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] In the utility model, when the water level rises to be flush with the height of the detection alarm body, the corresponding part of the positioning sleeve on the outside of the movable ruler can contact the two contact sensors located on the upper side. At this time, it can be known that the water level is flush with the installation height of the detection alarm body. When the water level continues to rise, the float rises with the water level, and finally the corresponding part of the positioning sleeve on the outside of the movable ruler contacts the contact sensor on the right. It should be added that when the corresponding part of the positioning sleeve contacts the right contact sensor for the first time, the current recorded value of the encoder is the initial value of the water level height. The current water level height can be calculated by adding the horizontal height of the installation place of the detection alarm body to the float height. Compared with the traditional float-type water level gauge, it can continue to monitor the water level when the water level exceeds the installation height of the detection alarm body, which can help rescue personnel to understand the current water level changes in time during the flood season. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a front view schematic diagram of a water conservancy detection alarm device of the utility model;
[0016] Figure 2 This is a top view schematic diagram of a water conservancy detection alarm device of the utility model;
[0017] Figure 3 The utility model is a schematic diagram of the distribution of contact sensors on the surface of the detection alarm body of a water conservancy detection alarm.
[0018] In the figure: 1. detection alarm body; 2. measuring wheel; 3. positioning sleeve; 4. movable ruler; 5. float; 6. contact sensor. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] See also Figure 1-3 The figure shows a preferred embodiment of the utility model, a water conservancy detection alarm instrument, including a detection alarm instrument body 1, an encoder is fixedly installed inside the detection alarm instrument body 1, a measuring wheel 2 is rotatably connected to the outer side of the detection alarm instrument body 1, one end of the measuring wheel 2 is fixedly connected to the input end of the encoder, a positioning sleeve 3 is rotatably connected to the outer wall of the detection alarm instrument body 1, the positioning sleeve 3 is located on the outer side of the measuring wheel 2, a movable ruler 4 is slidably connected to the inner side of the positioning sleeve 3, one end of the movable ruler 4 is meshed with the outer wall of the measuring wheel 2, and a float 5 is fixedly connected to the bottom of the movable ruler 4, and a plurality of contact sensors 6 distributed in a ring are arranged on the outer side of the axis of the measuring wheel 2 on the upper side of the outer wall of the detection alarm instrument body 1.
[0021] The number of the contact sensors 6 is not less than four, and the distribution shape is as follows: Figure 3 As shown, when the water level rises to the same height as the detection alarm body 1, the corresponding part of the positioning sleeve 3 on the outside of the movable ruler 4 can contact the two contact sensors 6 located on the upper side, and at this time it can be known that the water level is flush with the installation height of the detection alarm body 1;
[0022] When the water level continues to rise, the float 5 rises with the water level, and finally the corresponding part of the positioning sleeve 3 outside the movable scale 4 contacts the contact sensor 6 on the right. It should be added that when the corresponding part of the positioning sleeve 3 contacts the contact sensor 6 on the right for the first time, the current recorded value of the encoder is the initial value of the water level. The current water level can be calculated by adding the horizontal height of the installation place of the alarm body 1 to the height of the float 5. In the subsequent process, as the float 5 rises or falls, the engagement of the movable scale 4 and the measuring wheel 2 can make the value recorded by the encoder change corresponding to the water level until the float 5 rises to the absolute maximum height of the movable scale 4.
[0023] Specifically, the distance between one end of the positioning sleeve 3 and the outer wall of the detection alarm body 1 is lower than the distance that the input end of the contact sensor 6 extends out of the outer wall of the detection alarm body 1, so that when the float 5 and the movable ruler 4 change their angles on the outside of the detection alarm body 1 through the positioning sleeve 3, one end of the positioning sleeve 3 can contact the contact sensor 6. It should be added that the contact sensor 6 can be a pressure sensor.
[0024] Specifically, the inner wall of the positioning sleeve 3 and the outer wall of the movable ruler 4 are both smooth surfaces, so that the movable ruler 4 can move more smoothly.
[0025] The float 5 is cylindrical in shape, and a conical base is provided at the bottom of the float 5 to make the structure more stable.
[0026] In order to make the water level lower than the installation height of the detection alarm body 1, the movable ruler 4 and the float 5 can be relatively vertically located on the left side of the measuring wheel 2, and the center of gravity of the movable ruler 4 and the float 5 is located on the vertical axis at the axis center of the cross section of the float 5.
[0027] It should be added that a power supply module and an alarm module are provided inside the detection alarm body 1, which can give an alarm in time when abnormal water level data is detected. The alarm modes include sound and light alarm or alarm in the form of wireless communication; the positioning sleeve 3 includes a circular wheel sleeve and a rectangular ruler sleeve which are fixedly connected to each other.
[0028] In this embodiment, when the detection alarm body 1 is in normal use, the movable ruler 4 and the float 5 are located on the left side of the measuring wheel 2. The float 5 changes with the water level, driving one end of the movable ruler 4 to engage with the measuring wheel 2 to control the rotation of the measuring wheel 2 and detect the water level.
[0029] When the water level rises to the same height as the detection alarm body 1, the corresponding part of the positioning sleeve 3 on the outside of the movable ruler 4 can contact the two contact sensors 6 located on the upper side, and at this time it can be known that the water level is flush with the installation height of the detection alarm body 1;
[0030] When the water level continues to rise, the float 5 rises with the water level, and finally the corresponding part of the positioning sleeve 3 outside the movable scale 4 contacts the contact sensor 6 on the right. It should be added that when the corresponding part of the positioning sleeve 3 contacts the contact sensor 6 on the right for the first time, the current recorded value of the encoder is the initial value of the water level. The current water level can be calculated by adding the horizontal height of the installation place of the alarm body 1 to the height of the float 5. In the subsequent process, as the float 5 rises or falls, the engagement of the movable scale 4 and the measuring wheel 2 can make the value recorded by the encoder change corresponding to the water level until the float 5 rises to the maximum height determined by the length of the movable scale 4.
[0031] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.
Claims
1. A water conservancy detection alarm, characterized in that: The invention comprises a detection alarm instrument body (1), an encoder is fixedly installed inside the detection alarm instrument body (1), a measuring wheel (2) is rotatably connected to the outer side of the detection alarm instrument body (1), one end of the measuring wheel (2) is fixedly connected to the input end of the encoder, a positioning sleeve (3) is rotatably connected to the outer wall of the detection alarm instrument body (1), the positioning sleeve (3) is located on the outer side of the measuring wheel (2), a movable ruler (4) is slidably connected to the inner side of the positioning sleeve (3), one end of the movable ruler (4) is meshed with the outer wall of the measuring wheel (2), a float (5) is fixedly connected to the bottom of the movable ruler (4), and a plurality of contact sensors (6) distributed in an annular shape are arranged on the upper side of the outer wall of the detection alarm instrument body (1) outside the axis of the measuring wheel (2).
2. A water conservancy detection alarm according to claim 1, characterized in that: The number of the contact sensors (6) is not less than four.
3. A water conservancy detection alarm according to claim 1, characterized in that: The distance between one end of the positioning sleeve (3) and the outer wall of the detection alarm device body (1) is less than the distance that the input end of the contact sensor (6) extends out of the outer wall of the detection alarm device body (1).
4. A water conservancy detection alarm according to claim 1, characterized in that: The inner wall of the positioning sleeve (3) and the outer wall of the movable ruler (4) are both smooth surfaces.
5. A water conservancy detection alarm according to claim 1, characterized in that: The float (5) is cylindrical in shape, and a conical base is provided at the bottom of the float (5).
6. A water conservancy detection alarm according to claim 5, characterized in that: The centers of gravity of the movable ruler (4) and the float (5) are located on a vertical axis at the center of the cross section of the float (5).
7. A water conservancy detection alarm according to claim 1, characterized in that: A power supply module and an alarm module are arranged inside the detection alarm instrument body (1).