Doppler ultrasonic flow measuring instrument for water conservancy monitoring

Abstract

The utility model discloses a Doppler ultrasonic flow measuring instrument for water conservancy monitoring, which comprises a measuring device, and a blocking device is arranged in front of the measuring device. The blocking device comprises a support, a first gear is rotationally arranged at the top of the support, a motor is installed on one side of the first gear, a second gear is arranged behind the first gear, and a rack is arranged in front of the first gear; according to the Doppler ultrasonic flow measuring instrument for water conservancy monitoring, the barrier blocks impurities such as aquatic plants or plastic garbage and the like and prevents the impurities from being hung on the protective shell and affecting the detection result, and the baffle in front of the protective shell blocks fine dirt from flowing into the protective shell along water flow and prevents the dirt from being attached to a probe of a detector, so that the detection result is not influenced. The cleanliness of the detector is further improved, the service life of the detector is prolonged, and the failure rate is reduced; and through the design that the first gear is engaged with the second gear and the rack simultaneously, the motor can control the baffle and the barrier to move simultaneously, the linkage of the device is improved, and the cost is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water conservancy monitoring equipment design, in particular to a Doppler ultrasonic flow measuring instrument for water conservancy monitoring. Background Art

[0002] Doppler ultrasonic flowmeter is an instrument for measuring the velocity and flow rate of liquid or gas. It measures the flow rate by measuring the propagation speed and frequency change of ultrasonic waves in liquid or gas. It works by using the Doppler effect, which is the frequency change phenomenon caused by the different speeds of the moving object. Doppler ultrasonic flowmeter can be used in many application fields, such as industrial process control, water treatment, environmental monitoring, etc.

[0003] When the existing Doppler ultrasonic flow meter is installed underwater, debris such as aquatic plants and plastic garbage mixed in the water flow are easily caught on the meter, and the meter probe is easily blocked, affecting the measurement accuracy. Utility Model Content

[0004] The utility model aims to provide a Doppler ultrasonic flow meter for water conservancy monitoring to solve the problems existing in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A Doppler ultrasonic flow meter for water conservancy monitoring comprises a measuring device, in front of which a blocking device is arranged; the blocking device comprises a bracket, a first gear is rotatably arranged on the top of the bracket, a motor is installed on one side of the first gear, a second gear is arranged behind the first gear, a rack is arranged in front of the first gear, a baffle is fixedly arranged in front of the rack, a rotating shaft is arranged in the middle of the second gear, and a grille is fixedly arranged in front of the rotating shaft.

[0007] Furthermore: the measuring device includes a protective shell, a detector is installed in the middle of the protective shell, a power generation fan blade is installed behind the protective shell, a battery is installed on the top of the protective shell, and a fixing frame is fixedly arranged at the bottom of the protective shell.

[0008] Furthermore: the protective shell is in a rectangular shape, and the protective shell is connected to the fixing frame by bolts.

[0009] Furthermore: the baffle is slidably connected to the protective shell, and the bracket is welded to the protective shell.

[0010] Furthermore: the motor is keyed to the first gear, and the motor is bolted to the bracket.

[0011] Furthermore: the rotating shaft is connected to the bracket bearing.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The device is fixed to the area to be tested by a fixing frame. When not measuring, the front grille blocks impurities such as water plants or plastic garbage to prevent them from hanging on the protective shell and affecting the test results. The baffle in front of the protective shell blocks fine dirt from flowing into the protective shell along the water flow, preventing dirt from adhering to the probe of the detector, further improving the cleanliness of the detector, increasing the service life of the detector, and reducing the failure rate.

[0014] When in use, the bracket supports the motor to drive the first gear to rotate, and the first gear engages with the rack to drive the baffle to move up. At the same time, the first gear also engages with the second gear to drive the rotating shaft to rotate, so that the grille moves away from the front of the detector. At this time, the water flow can enter the protective shell unimpeded and flow through the detector to complete the measurement of water flow related data. Through the design of the first gear simultaneously engaging the second gear and the rack, the motor can control the movement of the baffle and the grille at the same time, thereby improving the linkage of the device and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a structural schematic diagram of a Doppler ultrasonic flow meter for water conservancy monitoring described in the utility model;

[0017] Figure 2 It is a partial cross-sectional view of a measuring device of a Doppler ultrasonic flowmeter for water conservancy monitoring described in the utility model;

[0018] Figure 3 It is a structural schematic diagram of a barrier device of a Doppler ultrasonic flow meter for water conservancy monitoring described in the utility model.

[0019] In the accompanying drawings, the following are numerals: 1. measuring device; 101. protective shell; 102. detector; 103. power generating fan blades; 104. battery; 105. fixing frame; 2. blocking device; 201. bracket; 202. first gear; 203. second gear; 204. motor; 205. rack; 206. baffle; 207. rotating shaft; 208. grille. DETAILED DESCRIPTION

[0020] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are 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 on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0022] 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.

[0023] See also Figure 1-Figure 3 A Doppler ultrasonic flow meter for water conservancy monitoring comprises a measuring device 1, in front of which a blocking device 2 is arranged.

[0024] In this embodiment: the measuring device 1 includes a protective shell 101, a detector 102 is installed in the middle of the protective shell 101, a power generation fan blade 103 is installed behind the protective shell 101, a battery 104 is installed on the top of the protective shell 101, and a fixing frame 105 is fixedly arranged at the bottom of the protective shell 101. The protective shell 101 is a rectangular parallelepiped, and the protective shell 101 is bolted to the fixing frame 105. The device is fixed to the area to be detected by the fixing frame 105. During the measurement process, the power generation fan blade 103 rotates to generate electricity to charge the battery 104, which is convenient for the device to run for a long time;

[0025] In this embodiment: the blocking device 2 includes a bracket 201, a first gear 202 is rotatably arranged on the top of the bracket 201, a motor 204 is installed on one side of the first gear 202, a second gear 203 is arranged behind the first gear 202, a rack 205 is arranged in front of the first gear 202, a baffle 206 is fixedly arranged in front of the rack 205, a rotating shaft 207 is arranged in the middle of the second gear 203, a grille 208 is fixedly arranged in front of the rotating shaft 207, the baffle 206 is slidably connected to the protective shell 101, the bracket 201 is welded to the protective shell 101, the motor 204 is flat-keyed to the first gear 202, the motor 204 is bolted to the bracket 201, the rotating shaft 207 is connected to the bracket 201 bearing, and when no measurement is performed, the front grille 208 blocks impurities such as aquatic plants or plastic garbage to prevent them from hanging on the protective shell 101 and affecting the detection result. The protective shell 101 The front baffle 206 blocks fine dirt from flowing into the protective shell 101 along the water flow, preventing the dirt from adhering to the probe of the detector 102, further improving the cleanliness of the detector 102, increasing the service life of the detector 102, and reducing the failure rate. When in use, the bracket 201 supports the motor 204 to drive the first gear 202 to rotate, and the first gear 202 engages the rack 205 to drive the baffle 206 to move upward. At the same time, the first gear 202 also engages the second gear 203 to drive the rotating shaft 207 to rotate, so that the grille 208 moves away from the front of the detector 102. At this time, the water flow can enter the protective shell 101 unimpeded and flow through the detector 102 to complete the measurement of water flow related data. The design of the first gear 202 simultaneously engaging the second gear 203 and the rack 205 allows the motor 204 to simultaneously control the movement of the baffle 206 and the grille 208, thereby improving the linkage of the device and saving costs.

[0026] Working principle: The device is fixed to the area to be detected by the fixing frame 105. When not measuring, the front grille 208 blocks impurities such as water plants or plastic garbage to prevent them from hanging on the protective shell 101 and affecting the detection results. The baffle 206 in front of the protective shell 101 blocks fine dirt from flowing into the protective shell 101 along the water flow to prevent dirt from adhering to the probe of the detector 102, further improving the cleanliness of the detector 102, increasing the service life of the detector 102, and reducing the failure rate. When in use, the bracket 201 supports the motor 204 to drive the first gear 202 to rotate, and the first gear 202 engages the rack 205 to drive The baffle 206 moves up, and at the same time, the first gear 202 also engages with the second gear 203, so that it drives the rotating shaft 207 to rotate, so that the grille 208 moves away from the front of the detector 102. At this time, the water flow can enter the protective shell 101 unimpeded and flow through the detector 102, completing the measurement of water flow related data. The design of the first gear 202 simultaneously engaging the second gear 203 and the rack 205 allows the motor 204 to simultaneously control the movement of the baffle 206 and the grille 208, thereby improving the linkage of the device and saving costs. During the measurement process, the power generation fan blades 103 rotate to generate electricity to charge the battery 104, which is convenient for the device to operate for a long time.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A Doppler ultrasonic flow meter for water conservancy monitoring, comprising a measuring device (1), characterized in that: A blocking device (2) is arranged in front of the measuring device (1); The blocking device (2) comprises a bracket (201), a first gear (202) being rotatably arranged at the top of the bracket (201), a motor (204) being installed at one side of the first gear (202), a second gear (203) being arranged behind the first gear (202), a rack (205) being arranged in front of the first gear (202), a baffle (206) being fixedly arranged in front of the rack (205), a rotating shaft (207) being arranged in the middle of the second gear (203), and a grille (208) being fixedly arranged in front of the rotating shaft (207).

2. A Doppler ultrasonic flow meter for water conservancy monitoring according to claim 1, characterized in that: The measuring device (1) comprises a protective shell (101), a detector (102) is installed in the middle of the protective shell (101), a power generation fan blade (103) is installed behind the protective shell (101), a battery (104) is installed on the top of the protective shell (101), and a fixing frame (105) is fixedly arranged on the bottom of the protective shell (101).

3. A Doppler ultrasonic flowmeter for water conservancy monitoring according to claim 2, characterized in that: The protective shell (101) is in a rectangular parallelepiped shape, and the protective shell (101) is bolted to the fixing frame (105).

4. A Doppler ultrasonic flow meter for water conservancy monitoring according to claim 2, characterized in that: The baffle (206) is slidably connected to the protective shell (101), and the bracket (201) and the protective shell (101) are welded together.

5. The Doppler ultrasonic flow meter for water conservancy monitoring according to claim 1, characterized in that: The motor (204) is key-connected to the first gear (202), and the motor (204) is bolt-connected to the bracket (201).

6. A Doppler ultrasonic flow meter for water conservancy monitoring according to claim 1, characterized in that: The rotating shaft (207) is bearing-connected to the bracket (201).

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