Rainfall measuring device for hydrological monitoring

Abstract

The utility model relates to the technical field of hydrological monitoring equipment, in particular to a rainfall measuring device for hydrological monitoring, which comprises a fixed seat, three supporting columns are arranged in the middle of the upper end of the fixed seat, and a rain receiving hopper is arranged at the upper ends of the supporting columns at the front part and the rear part together. A water distribution hopper is movably installed at the upper end of the supporting column located in the middle through a movable shaft, water distribution pipes are arranged at the left end and the right end of the water distribution hopper, the rain receiving hopper corresponds to the water distribution hopper in position in the vertical direction, and measuring cylinders are arranged on the left portion and the right portion of the upper end of the fixing base. Sliding grooves are formed in the inner front walls and the inner rear walls of the two measuring cylinders, and floating devices are jointly installed in the two sliding grooves which are opposite in the front-back direction in a sliding mode. According to the rainfall measuring device for hydrological monitoring, water in the measuring cylinder can be conveniently and automatically drained, manual drainage is not needed, and the number of drainage times can be monitored according to the counter, so that the purpose of monitoring and measuring rainfall is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrological monitoring equipment, and particularly relates to a rainfall measuring device for hydrological monitoring. Background Art

[0002] In the field of hydrological monitoring, accurate measurement of rainfall is of crucial significance for aspects such as water resource management, meteorological forecasting, and flood warning. Traditional rainfall measuring devices usually adopt a simple method of collecting water in a measuring cylinder, and determine the rainfall by manually reading the water level in the measuring cylinder. However, this method has some deficiencies. The measuring cylinder in the traditional rainfall measuring device needs to be drained manually after being filled with water, which is cumbersome and time-consuming. In the case of continuous rainfall monitoring, manual drainage not only increases the labor intensity of the staff, but also may affect the measurement accuracy due to untimely drainage. Especially in bad weather or remote areas, it is more difficult to drain manually and it is difficult to meet the needs of real-time monitoring. Therefore, we have developed a new rainfall measuring device for hydrological monitoring. Content of the Utility Model

[0003] The main purpose of the utility model is to provide a rainfall measuring device for hydrological monitoring, which can effectively solve the problems in the background art.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A rainfall measuring device for hydrological monitoring includes a fixed seat. In the middle of the upper end of the fixed seat, there are three support columns. At the upper ends of the front and rear support columns, a rain receiving hopper is jointly arranged. At the upper end of the middle support column, a water dividing hopper is movably installed through a movable shaft. Water dividing pipes are arranged at the left and right ends of the water dividing hopper. The positions of the rain receiving hopper and the water dividing hopper correspond up and down. Measuring cylinders are arranged at the left and right parts of the upper end of the fixed seat. Sliding grooves are arranged on the inner front walls and inner rear walls of the two measuring cylinders. Floating devices are jointly slidably installed inside the two pairs of front and rear opposite sliding grooves. Drainage devices are arranged at the lower parts of the two ends of the two measuring cylinders away from the support columns.

[0006] Preferably, the floating device includes a support frame and a floating plate. There are two floating plates, which are symmetrically distributed front and back. A connecting plate is fixedly installed between the two floating plates. A moving contact is fixedly installed at the upper end of the rear floating plate. A static contact is fixedly installed at the lower end of the support frame. Three floating balls are fixedly installed at the lower end of the connecting plate through a connecting rod. Sliding blocks are arranged on the sides of the two floating plates close to the inner wall of the measuring cylinder.

[0007] Preferably, the positions of the moving contact and the static contact correspond up and down.

[0008] By adopting the above technical solution, the accuracy and stability of contact are improved.

[0009] Preferably, the support frame is fixedly installed above the rear part of the outer surface of the graduated cylinder.

[0010] By adopting the above technical solution, the support frame plays a role of fixed support.

[0011] Preferably, both of the floating plates are slidably installed inside the sliding grooves through sliding blocks.

[0012] By adopting the above technical solution, the sliding of the sliding blocks in the sliding grooves provides a guiding effect for the floating plates, preventing the floating plates from excessively shifting in the horizontal direction.

[0013] Preferably, the drainage device includes a drain pipe. A protective shell is fixedly installed on the upper part of the outer surface of the drain pipe. A counter is fixedly installed at the upper end of the protective shell. A motor is fixedly installed on the inner upper wall of the protective shell. A rotating rod is fixedly installed at the output end of the motor. The rotating rod penetrates through the upper pipe wall of the drain pipe and extends into the inside of the drain pipe. A spherical valve is arranged on the inner surface of the drain pipe.

[0014] By adopting the above technical solution, the motor and the rotating rod facilitate driving the spherical valve to rotate, thereby facilitating the effective blocking or conducting of water flow. The counter can record the number of drainage times.

[0015] Preferably, the upper part of the outer surface of the spherical valve is fixedly connected to the lower end of the rotating rod.

[0016] By adopting the above technical solution, the rotating rod can accurately drive the spherical valve to rotate, thereby realizing the opening and closing control of the drainage channel.

[0017] Compared with the prior art, the present utility model has the following beneficial effects:

[0018] 1. In the present utility model, when the water level in the graduated cylinder rises, the two floating plates and the three floating balls can drive the moving contact above to lift upward. Under the action of buoyancy, the floating plates slide up and down in the sliding grooves through the sliding blocks. The cooperation of the sliding blocks and the sliding grooves can ensure that the floating plates can only move in the vertical direction, avoiding the inclination or deviation of the floating plates caused by factors such as water flow fluctuations, thereby ensuring the accuracy of measurement. When the water level reaches the highest level of the graduated cylinder, at this time the floating plates rise accordingly, driving the moving contact to approach the static contact. When the moving contact contacts the static contact, the generated signal can be transmitted to the drainage device;

[0019] 2. In the present utility model, when the moving contact touches the static contact, the motor can be turned on. The motor drives the rotating rod to rotate through the output end. The rotating rod transmits the rotational motion of the motor to the spherical valve, causing it to rotate. When the spherical valve rotates to a certain angle, water can be discharged through the drain pipe. When the spherical valve is in the closed state, it can prevent the flow of water. The counter can record the drainage times of the drainage device, thereby achieving the purpose of monitoring and measuring rainfall. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure of a rainfall measurement device for hydrological monitoring according to the present utility model;

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the measuring cylinder of a rainfall measurement device for hydrological monitoring according to the present utility model;

[0022] Figure 3 It is a schematic diagram of the overall structure of the floating device of a rainfall measurement device for hydrological monitoring according to the present utility model;

[0023] Figure 4 It is a schematic diagram of the overall structure of the drainage device of a rainfall measurement device for hydrological monitoring according to the present utility model.

[0024] In the figure: 1, fixed seat; 2, support column; 3, rain-catching hopper; 4, water dividing hopper; 5, water dividing pipe; 6, measuring cylinder; 7, sliding groove; 8, floating device; 80, support frame; 81, floating board; 82, connecting plate; 83, moving contact; 84, static contact; 85, floating ball; 86, sliding block; 9, drainage device; 91, drain pipe; 92, protective shell; 93, counter; 94, motor; 95, rotating rod; 96, spherical valve. Detailed Embodiment

[0025] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. shall be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] Please refer to Figures 1-4 , the present utility model provides a technical solution:

[0029] A rain gauge for hydrological monitoring, comprising a fixed seat 1. In the middle of the upper end of the fixed seat 1, three support columns 2 are provided. At the upper ends of the front and rear support columns 2, a rain receiving hopper 3 is jointly provided. At the upper end of the middle support column 2, a water dividing hopper 4 is movably installed through a movable shaft. Water dividing pipes 5 are provided at both the left end and the right end of the water dividing hopper 4. The positions of the rain receiving hopper 3 and the water dividing hopper 4 correspond up and down. Measuring cylinders 6 are provided at both the left part and the right part of the upper end of the fixed seat 1. Sliding grooves 7 are provided on both the inner front wall and the inner rear wall of the two measuring cylinders 6. Inside the two sliding grooves 7 that face each other front and back, a floating device 8 is jointly slidably installed. Drainage devices 9 are provided at the lower parts of the ends of the two measuring cylinders 6 far from the support columns 2.

[0030] In this embodiment, the floating device 8 includes a support frame 80 and a floating plate 81. There are two floating plates 81, which are symmetrically distributed front and back between the two floating plates 81. A connecting plate 82 is fixedly installed between the two floating plates 81. A moving contact 83 is fixedly installed at the upper end of the rear floating plate 81. A static contact 84 is fixedly installed at the lower end of the support frame 80. Three floating balls 85 are fixedly installed at the lower end of the connecting plate 82 through a connecting rod. Sliding blocks 86 are provided on the sides of the two floating plates 81 close to the inner wall of the measuring cylinder 6; the positions of the moving contact 83 and the static contact 84 correspond up and down; the support frame 80 is fixedly installed above the upper rear part of the outer surface of the measuring cylinder 6; both floating plates 81 are slidably installed inside the sliding grooves 7 through the sliding blocks 86.

[0031] Through the above solution: when the water level rises, the two floating plates 81 and the three floating balls 85 can drive the moving contact 83 above to lift upward. Under the action of buoyancy, the floating plate 81 slides up and down in the sliding groove 7 through the sliding block 86. The cooperation between the sliding block 86 and the sliding groove 7 can ensure that the floating plate 81 can only move in the vertical direction, avoiding the inclination or deviation of the floating plate 81 caused by factors such as water flow fluctuations, thus ensuring the accuracy of the measurement. When the water level reaches the highest level of the measuring cylinder 6, at this time, the floating plate 81 rises accordingly, driving the moving contact 83 to approach the static contact 84. The signal generated when the moving contact 83 contacts the static contact 84 can be transmitted to the drainage device 9.

[0032] In this embodiment, the drainage device 9 includes a drainage pipe 91. The upper part of the outer surface of the drainage pipe 91 is fixedly installed with a protective shell 92. The upper end of the protective shell 92 is fixedly installed with a counter 93. The inner upper wall of the protective shell 92 is fixedly installed with a motor 94. The output end of the motor 94 is fixedly installed with a rotating rod 95. The rotating rod 95 penetrates the upper pipe wall of the drainage pipe 91 and extends into the interior of the drainage pipe 91. The inner surface of the drainage pipe 91 is provided with a spherical valve 96; the upper part of the outer surface of the spherical valve 96 is fixedly connected to the lower end of the rotating rod 95.

[0033] Through the above solution: when the moving contact 83 contacts the static contact 84, the motor 94 can be turned on. The motor 94 drives the rotating rod 95 to rotate through the output end. The rotating rod 95 transmits the rotational motion of the motor 94 to the spherical valve 96, causing it to rotate. When the spherical valve 96 rotates to a certain angle, water can be discharged through the drainage pipe 91. When the spherical valve 96 is in the closed state, it can prevent the flow of water. The counter 93 can record the drainage times of the drainage device 9, so as to achieve the purpose of monitoring and measuring rainfall.

[0034] It should be noted that the present utility model is a rainfall measuring device for hydrological monitoring. During use, when the water level rises, under the action of buoyancy, the two floating plates 81 and the three floating balls 85 act together to make the floating plate 81 float upward, and then drive the moving contact 83 above to lift. When the water level reaches the highest level of the measuring cylinder 6, the floating plate 81 continues to rise, making the moving contact 83 approach the static contact 84. Due to the cooperation between the sliding block 86 and the sliding groove 7, the floating plate 81 can only move in the vertical direction, avoiding inclination or deviation caused by factors such as water flow fluctuations, ensuring the accuracy of the measurement. When the moving contact 83 contacts the static contact 84, it will trigger a signal to turn on the motor 94. After the motor 94 is started, it drives the rotating rod 95 to rotate through the output end. The rotating rod 95 transmits the rotational motion to the spherical valve 96, causing it to rotate. When the spherical valve 96 rotates to a certain angle, water can be discharged through the drainage pipe 91; when the spherical valve 96 is in the closed state, it can prevent the flow of water. At the same time, the counter 93 can record the drainage times of the drainage device 9, thus achieving the purpose of monitoring and measuring rainfall.

[0035] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A rain gauge for hydrological monitoring, comprising a fixed seat (1), characterized in that: In the middle of the upper end of the fixed seat (1), there are three support columns (2). At the upper ends of the front and rear support columns (2), a rain-catching funnel (3) is jointly arranged. At the upper end of the middle support column (2), a water-dividing funnel (4) is movably installed through a movable shaft. At the left and right ends of the water-dividing funnel (4), water-dividing pipes (5) are arranged. The positions of the rain-catching funnel (3) and the water-dividing funnel (4) correspond up and down. At the left and right parts of the upper end of the fixed seat (1), measuring cylinders (6) are arranged. On the inner front wall and inner rear wall of the two measuring cylinders (6), sliding grooves (7) are arranged. Inside the two sliding grooves (7) that face each other front and back, a floating device (8) is jointly slidably installed. At the lower parts of the ends of the two measuring cylinders (6) away from the support columns (2), a drainage device (9) is arranged; The floating device (8) includes a support frame (80) and floating plates (81). There are two floating plates (81), and the two floating plates (81) are symmetrically distributed front and back. A connecting plate (82) is fixedly installed between the two floating plates (81). At the upper end of the rear floating plate (81), a moving contact (83) is fixedly installed. At the lower end of the support frame (80), a static contact (84) is fixedly installed. At the lower end of the connecting plate (82), three floating balls (85) are fixedly installed through a connecting rod. On the sides of the two floating plates (81) close to the inner wall of the measuring cylinder (6), sliding blocks (86) are arranged.

2. The rain gauge for hydrological monitoring according to claim 1, characterized in that: The positions of the moving contact (83) and the static contact (84) correspond up and down.

3. A rainfall measurement device for hydrological monitoring according to claim 1, characterized in that: The support frame (80) is fixedly installed above the rear part of the outer surface of the measuring cylinder (6).

4. A rain gauge for hydrological monitoring according to claim 1, characterized in that: The two floating plates (81) are both slidably installed inside the sliding groove (7) through the sliding blocks (86).

5. The rain gauge for hydrological monitoring according to claim 1, characterized in that: The drainage device (9) includes a drain pipe (91). On the upper part of the outer surface of the drain pipe (91), a protective shell (92) is fixedly installed. At the upper end of the protective shell (92), a counter (93) is fixedly installed. On the inner upper wall of the protective shell (92), a motor (94) is fixedly installed. At the output end of the motor (94), a rotating rod (95) is fixedly installed. The rotating rod (95) penetrates through the upper pipe wall of the drain pipe (91) and extends into the inside of the drain pipe (91). On the inner surface of the drain pipe (91), a spherical valve (96) is arranged.

6. The rainfall measurement device for hydrological monitoring according to claim 5, characterized in that: The upper part of the outer surface of the spherical valve (96) is fixedly connected to the lower end of the rotating rod (95).

Images