Water quality detection device for sewage treatment

Abstract

The invention belongs to the technical field of sewage treatment, and provides a water quality detection device for sewage treatment, the water quality detection device comprises a carrier capable of floating on the water surface and a detection assembly arranged on the carrier, and the detection assembly comprises a detection water tank arranged at the bottom of the carrier; the first end of the water inlet pipe is connected and communicated with the detection water tank, and the second end extends out of the detection water tank; the detector is arranged on the carrier, and the detection end of the detector extends into the detection water tank; the first water pump is arranged on the carrier and is used for pumping the sewage into the detection water tank for detection; the first end of the water outlet pipe is connected and communicated with the detection water tank, and the second end extends out of the detection water tank; and the second water pump is communicated with the water outlet pipe and is used for pumping out the sewage in the detection water tank after the detection of the detection assembly is finished. The water quality detection device for sewage treatment provided by the invention is simple in structure and reasonable in design, and the service life of the detector is relatively long.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a water quality detection device for sewage treatment. Background Art

[0002] With the development of cities and towns, the treatment of sewage generated by production and life has become more and more prominent. In the process of treating these sewage, sewage treatment plants need to test their water quality to ensure that the treated sewage can meet the discharge standards and will not cause damage to the ecological environment. Traditionally, manual testing is used to monitor the water quality of sewage.

[0003] Due to the large amount of urban sewage, there are many loopholes in monitoring the water quality of sewage through manual testing. Therefore, it is necessary to install water quality testing devices at different links to monitor the water quality of sewage, collect water quality information in real time and upload it to the monitoring platform, store and analyze water quality data, and manage it intelligently.

[0004] Since different elements need to be tested at different stages of sewage treatment, it is necessary to select a water quality testing device suitable for the current stage according to the actual situation. At the inlet of the sewage treatment plant, the water quality is poor, but the water flow is gentle and the water level is high, so a floating water quality testing device is usually used.

[0005] However, the floating water quality detection device in the prior art requires the water quality detector to be sunk to a fixed depth to detect the water quality. Long-term immersion will shorten the service life of the water quality detector. Summary of the invention

[0006] In view of the defects in the prior art, an object of the present invention is to provide a water quality detection device for sewage treatment to solve or alleviate the above-mentioned problems existing in the prior art.

[0007] In order to achieve the above object, the present invention provides a water quality detection device for sewage treatment, comprising:

[0008] A vehicle capable of floating on water; and

[0009] A detection component, which is arranged on the carrier, comprises:

[0010] A detection water tank, which is arranged at the bottom of the carrier;

[0011] A water inlet pipe, a first end of which is connected to and communicates with the detection water tank, and a second end of which extends outside the detection water tank;

[0012] A detector, which is arranged on the carrier, and a detection end of which extends into the detection water tank;

[0013] a first water pump, which is arranged on the carrier and communicated with the water inlet pipe, and is used to pump sewage into the detection water tank for detection;

[0014] a water outlet pipe, a first end of which is connected to and communicates with the detection water tank, and a second end of which extends outside the detection water tank; and

[0015] The second water pump is arranged on the carrier and communicated with the water outlet pipe. The second water pump is used to pump out the sewage in the detection water tank after the detection of the detection component is completed.

[0016] Furthermore, the detection component also includes a control mechanism, which is arranged on the carrier or the detection water tank. When the water level of sewage pumped into the detection water tank by the first water pump reaches a preset height, the control mechanism shuts down the first water pump.

[0017] Further, the control mechanism comprises a liquid level sensor, the liquid level sensor is arranged in the detection water tank, the liquid level sensor is fixedly connected to the detection water tank or the carrier, and the liquid level sensor is electrically connected to the controller;

[0018] Wherein, in the working state, when the liquid level sensor detects that the liquid level in the detection water tank reaches a preset height, the liquid level sensor transmits the detected information to the controller, and the controller controls the first water pump to turn off.

[0019] Furthermore, the control mechanism comprises:

[0020] a first floating block, which is movably connected to the detection water tank and can move longitudinally as the water level of the sewage in the detection water tank changes; and

[0021] a detection element, which is disposed on the detection water tank or the carrier, is electrically connected to the controller, and is used to detect the position of the first floating block and transmit the detected position information of the first floating block to the controller;

[0022] In the working state, when the detection element detects that the first floating block reaches a preset position, the detection element transmits the information to the controller, so that the first water pump is turned off through the controller.

[0023] Further, the detection element includes a distance sensor, the distance sensor is fixedly connected to the detection water tank or the carrier, the distance sensor is electrically connected to the controller, and the distance sensor is used to detect the distance between it and the first floating block;

[0024] In the working state, when the distance measuring sensor detects that the distance between it and the first floating block reaches a preset value, the distance measuring sensor transmits the detected information to the controller, so that the first water pump is turned off through the controller.

[0025] Further, the detection element comprises a pull-wire displacement sensor, the pull-wire displacement sensor is fixedly connected to the detection water tank or the carrier, the pull-wire displacement sensor is electrically connected to the controller, and the steel wire of the pull-wire displacement sensor is fixedly connected to the first floating block;

[0026] In the working state, when the pull-wire displacement sensor detects that the first floating block moves to a preset position, the pull-wire displacement sensor transmits the detected information to the controller, thereby shutting down the first water pump through the controller.

[0027] Furthermore, the control mechanism comprises:

[0028] a movable electrode, which is arranged on the input circuit of the first water pump and is movably connected to the carrier, and has a first position and a second position. When the movable electrode is placed in the first position, the movable electrode connects the input circuit of the first water pump; when the movable electrode is placed in the second position, the movable electrode disconnects the input circuit of the first water pump;

[0029] A second floating block is movably connected to the detection water tank and can move longitudinally as the water level of the sewage in the detection water tank changes;

[0030] A first elastic element, a first end of which is connected to the movable electrode and a second end of which is connected to the carrier or the detection water tank, and is used to provide elastic force to the movable electrode so that the movable electrode has a tendency to move from the second position to the first position;

[0031] A first pull wire, a first end of which is fixedly connected to the movable electrode, and a second end of which is fixedly connected to the second floating block;

[0032] In the working state, when the distance between the second floating block and the movable electrode increases, the second floating block applies a pulling force to the movable electrode through the first pull wire, so that the movable electrode can overcome the elastic force of the first elastic member and move from the first position to the second position, thereby disconnecting the input circuit of the first water pump.

[0033] Beneficial effects of the present invention:

[0034] The water quality detection device for sewage treatment provided by the present invention pumps sewage in a sewage pool into a detection water tank for detection by a first water pump, and after the detection is completed, pumps the sewage in the detection water tank out by a second water pump, so that the detector does not need to be immersed in sewage all the time, thereby improving the service life of the detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0036] Figure 1 A three-dimensional view of a water quality detection device for sewage treatment provided by an embodiment of the present invention;

[0037] Figure 2 for Figure 1 An enlarged view of section A is shown;

[0038] Figure 3 for Figure 1 The internal structure view of the first embodiment of the water quality detection device for sewage treatment shown;

[0039] Figure 4 for Figure 1 The internal structure view of the second embodiment of the water quality detection device for sewage treatment shown;

[0040] Figure 5 for Figure 4 An enlarged view of section B is shown;

[0041] Figure 6 for Figure 1 The internal structure view of the third embodiment of the water quality detection device for sewage treatment shown;

[0042] Figure 7 for Figure 1 The internal structure view of the fourth embodiment of the water quality detection device for sewage treatment shown;

[0043] Figure 8 for Figure 1 The internal structure view of the fifth embodiment of the water quality detection device for sewage treatment shown;

[0044] Fig. 9 for Figure 8 An enlarged view of section C is shown;

[0045] Fig.10 for Figure 1The internal structure view of the sixth embodiment of the water quality detection device for sewage treatment shown;

[0046] Fig.11 for Fig.10 An enlarged view of section D is shown;

[0047] Fig.12 for Figure 1 A three-dimensional view of a connection assembly of a water quality detection device for sewage treatment shown;

[0048] Fig.13 for Fig.12 An enlarged view of section E is shown;

[0049] Fig.14 for Figure 1 The diagram shows the combined structure of the third floating block and the carrier of the water quality detection device for sewage treatment.

[0050] Reference numerals:

[0051] 100, carrier; 110, mounting frame; 210, detection water tank; 211, partition; 220, water inlet pipe; 221, water inlet control valve; 230, first water pump; 240, detector; 250, water outlet pipe; 251, control valve; 260, second water pump; 271, liquid level sensor; 272, first float; 273, distance sensor; 274, wire displacement sensor; 275, moving electrode; 276, second float; 277, first pull wire; 278, first elastic element; 279, fixed electrode; 280, gravity element; 290, mounting seat; 300, connecting assembly; 310, reel; 320, third float; 330, transmission element; 340, cable; 350, ratchet structure; 351, ratchet; 352, ratchet teeth; 353, second elastic member; 400, photovoltaic assembly. DETAILED DESCRIPTION

[0052] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0053] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0054] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0055] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0056] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0058] like Figure 1-14 As shown, the present invention provides a water quality detection device for sewage treatment, including a carrier 100 and a detection component.

[0059] The carrier 100 can float on the water surface. The carrier 100 can be a load-bearing element that can float on the water surface because of its low average density, such as a buoy, or a load-bearing element that can float on the water surface because of the provision of an air bag.

[0060] The detection component is disposed on the carrier 100 and is used to detect sewage. The detection component includes a detection water tank 210 , a water inlet pipe 220 , a first water pump 230 , a detector 240 , a water outlet pipe 250 and a second water pump 260 .

[0061] The detection water tank 210 is disposed at the bottom of the carrier 100 , and the detection water tank 210 is fixedly connected to the carrier 100 , for example, by threading, welding, gluing, etc. The first end of the water inlet pipe 220 is connected to and communicates with the detection water tank 210 , and the second end extends outside the detection water tank 210 .

[0062] The first water pump 230 is disposed on the carrier 100, and the first water pump 230 is fixedly connected to the carrier 100, for example, by threaded connection, welding, etc. The first water pump 230 is connected to the water inlet pipe 220. In the working state, the first water pump 230 pumps sewage into the water tank for detection.

[0063] like Figure 3 , 4 As shown in Figures 6, 7, 8 and 10, in the present embodiment, a partition 211 is provided in the detection water tank 210, and the partition 211 is used to separate the detection water tank 210 into a water storage chamber and an installation chamber. The first water pump 230 is installed in the installation chamber and fixedly connected to the detection water tank 210.

[0064] The detector 240 is disposed on the carrier 100, and the detector 240 is fixedly connected to the carrier 100, for example, by threaded connection, welding, etc. The detection end of the detector 240 extends into the detection water tank 210. In the working state, the first water pump 230 pumps sewage into the detection water tank 210, and makes the water level of the sewage in the detection water tank 210 be located above the detection end of the detector 240, so that the detector 240 can detect the sewage.

[0065] The first end of the water outlet pipe 250 is connected to and communicates with the water storage tank, and the second end extends to the outside of the detection water tank 210. The second water pump 260 is arranged on the carrier 100, and the second water pump 260 is fixedly connected to the carrier 100, for example, by threaded connection, welding, etc., and the second water pump 260 is communicated with the water outlet pipe 250. In the working state, when the detection component is detected, the second water pump 260 pumps out the sewage in the detection water tank 210 to prevent the detector 240 from being immersed in the sewage for a long time, thereby achieving the purpose of increasing the service life of the detector 240.

[0066] like Figure 3 , 4 As shown in , 6, 7, 8, and 10, in this embodiment, the second water pump 260 is installed in the installation cavity and fixedly connected to the detection water tank 210.

[0067] Specifically, during use, according to a preset frequency, the first water pump 230 pumps the sewage in the treatment pool into the detection water tank 210 for detection at regular intervals, and after the detection is completed, the second water pump 260 pumps out the sewage in the treatment water tank 210, so that the detector 240 does not need to be immersed in sewage all the time, thereby improving the service life of the detector 240.

[0068] like Figure 3 , 4 As shown in Figures 6, 7, 8 and 10, optionally, a water inlet control valve 221 is provided on the water inlet pipe 220, and a water outlet control valve 251 is provided on the water outlet pipe 250.

[0069] The water quality detection device provided in this embodiment pumps the sewage in the sewage pool into the detection water tank 210 for detection through the first water pump 230, and after the detection is completed, pumps out the sewage in the detection water tank 210 through the second water pump 260, so that the detector 240 does not need to be immersed in sewage all the time, thereby improving the service life of the detector 240.

[0070] like Figure 3 , 4 As shown in Figures 6, 7, 8, and 10, the detection assembly further includes a control mechanism, which is disposed on the carrier 100 or the detection water tank 210. In the working state, when the water level of the sewage pumped into the detection water tank 210 by the first water pump 230 reaches a preset height, the control mechanism turns off the first water pump 230 to prevent the detector 240 from being damaged due to the first water pump 230 pumping too much sewage into the detection water tank 210.

[0071] like Figure 3 As shown, the control mechanism includes a liquid level sensor 271, which is disposed in the detection water tank 210, and the liquid level sensor 271 is fixedly connected to the detection water tank 210 or the carrier 100, and the liquid level sensor 271 is electrically connected to the controller. In the working state, when the liquid level sensor 271 detects that the liquid level in the detection water tank 210 reaches a preset height, the liquid level sensor 271 transmits the detected information to the controller, and the controller controls the first water pump 230 to turn off, thereby achieving the purpose of ensuring that the liquid level of the sewage in the detection water tank 210 does not rise to a height that damages the detector 240.

[0072] like Figure 4 , 5 As shown in Figures 6 and 7, in this embodiment, the control mechanism includes a first floating block 272 and a detection element.

[0073] The first float 272 is movably connected to the detection water tank 210, and the first float 272 can move longitudinally as the water level of the sewage in the detection water tank 210 changes, that is, the average density of the first float 272 is less than the density of the sewage, so that the first float 272 can float on the liquid surface. When the water level of the sewage in the detection water tank 210 rises, the first float 272 rises with the rise of the water level under the action of buoyancy; when the water level of the sewage in the detection water tank 210 drops, the first float 272 drops with the drop of the water level under the action of gravity.

[0074] It should be noted that the first float 272 can be disposed inside the detection water tank 210 and slidably connected to the detection water tank 210. The first float 272 can also be disposed outside the detection water tank 210. Specifically, a liquid level pipe communicating with the detection water tank 210 is disposed outside the detection water tank 210, and the liquid level pipe and the detection water tank 210 form a communicating vessel structure. The first float 272 is disposed inside the liquid level pipe and slidably connected to the liquid level pipe.

[0075] like Figure 4 , 6 As shown, in this embodiment, the first floating block 272 is disposed in the detection water tank 210 and is slidably connected to the detection water tank 210 .

[0076] The detection element is fixedly connected to the detection water tank 210 or the carrier 100, and the detection element is electrically connected to the controller. The detection element is used to detect the position of the first float 272 and transmit the detected position information of the first float 272 to the controller. When the detection element detects that the first float 272 reaches a preset position, the detection element transmits the information to the controller, thereby shutting down the first water pump 230 through the controller.

[0077] like Figure 4 , 5 As shown, optionally, the detection element includes a distance sensor 273, the distance sensor 273 is fixedly connected to the detection water tank 210 or the carrier 100, and the distance sensor 273 is electrically connected to the controller. The distance sensor 273 is used to detect the distance between it and the first floating block 272. When the first floating block 272 rises or falls, the distance between the first floating block 272 and the distance sensor 273 will increase or decrease, so that the water level of the sewage in the detection water tank 210 can be calculated according to the distance between the first floating block 272 and the distance sensor 273.

[0078] In the working state, when the distance measuring sensor 273 detects that the distance between it and the first floating block 272 reaches a preset value, it means that the water level of the sewage in the detection tank 210 reaches a preset height. The distance measuring sensor 273 transmits the detected information to the controller, thereby shutting down the first water pump 230 through the controller.

[0079] like Figure 4 , 5 As shown, optionally, the distance measuring sensor 273 is a laser distance measuring sensor. Preferably, a reflective sheet is provided on one side of the first floating block 272 facing the laser distance measuring sensor to reflect the laser emitted by the laser distance measuring sensor.

[0080] like Figure 6 , 7 As shown, optionally, the detection element includes a wire displacement sensor 274, the wire displacement sensor 274 is fixedly connected to the detection water tank 210 or the carrier 100, the wire of the wire displacement sensor 274 is fixedly connected to the first floating block 272, and the wire displacement sensor 274 is electrically connected to the controller. When the first floating block 272 rises or falls, the distance between the first floating block 272 and the wire displacement sensor 274 will increase or decrease, when the distance between the first floating block 272 and the wire displacement sensor 274 increases, the wire of the wire displacement sensor 274 is extended; when the distance between the first floating block 272 and the wire displacement sensor 274 decreases, the wire of the wire displacement sensor 274 is retracted, so that according to the extension of the wire of the wire displacement sensor 274, the position of the first floating block 272 is obtained, so as to calculate the water level of the sewage in the detection water tank 210.

[0081] In the working state, when the pull-wire displacement sensor 274 detects that the first floating block 272 moves to the preset position, it means that the water level of the sewage in the detection tank 210 reaches the preset height. The pull-wire displacement sensor 274 transmits the detected information to the controller, thereby shutting down the first water pump 230 through the controller.

[0082] Although the control mechanism is simple in structure, it transmits relevant information to the controller through a detection element (e.g., a sensor), thereby controlling the first water pump 230 to stop running. Once the detection element is damaged or fails, the first water pump 230 cannot be stopped when the sewage level in the detection water tank 210 reaches a preset height, and the reliability is poor. Figure 8 , 9 As shown in FIGS. 10 and 11 , the control mechanism includes a movable electrode 275 , a second floating block 276 , a first pull wire 277 and a first elastic element 278 .

[0083] The movable electrode 275 is disposed on the input circuit of the first water pump 230, and the movable electrode 275 is movably connected to the carrier 100 or the detection water tank 210, for example, by hinge connection, sliding connection, etc. Figure 8 As shown, in this embodiment, the movable electrode 275 is slidably connected to the carrier 100. A mounting seat 290 is fixedly disposed on the carrier 100, and the movable electrode 275 is slidably disposed in the mounting seat 290. Fig.10As shown, in this embodiment, the moving electrode 275 is slidably connected to the detection water tank 210. A mounting seat 290 is fixedly disposed on the detection water tank 210, and the moving electrode 275 is slidably disposed in the mounting seat 290.

[0084] The movable electrode 275 has a first position and a second position. When the movable electrode 275 is placed in the first position, the movable electrode 275 connects the input circuit of the first water pump 230 ; when the movable electrode 275 is placed in the second position, the movable electrode 275 disconnects the input circuit of the first water pump 230 .

[0085] like Figure 8 , 9 As shown in Figures 10 and 11, a fixed electrode 279 is provided on the input circuit of the first water pump 230, and the fixed electrode 279 is fixedly embedded in the mounting base 290. When the movable electrode 275 is in the first position, the movable electrode 275 corresponds to the fixed electrode 279, thereby connecting the input circuit of the first water pump 230. When the movable electrode 275 is placed in the second position, the movable electrode 275 and the fixed electrode 279 are offset, thereby disconnecting the input circuit of the first water pump 230.

[0086] The second float 276 is movably connected to the detection water tank 210, and the second float 276 can move longitudinally as the water level of the sewage in the detection water tank 210 changes, that is, the average density of the second float 276 is less than the density of the sewage, so that the second float 276 can float on the liquid surface. When the water level of the sewage in the detection water tank 210 rises, the second float 276 rises with the rise of the water level under the action of buoyancy; when the water level of the sewage in the detection water tank 210 drops, the second float 276 drops with the drop of the water level under the action of gravity.

[0087] It should be noted that the second float 276 can be disposed inside the detection water tank 210 and slidably connected to the detection water tank 210. The second float 276 can also be disposed outside the detection water tank 210. Specifically, a liquid level pipe communicating with the detection water tank 210 is disposed outside the detection water tank 210, and the liquid level pipe forms a communicating vessel structure with the detection water tank 210. The second float 276 is disposed inside the liquid level pipe and slidably connected to the liquid level pipe.

[0088] like Figure 8 , 10 As shown, in this embodiment, the second floating block 276 is disposed in the detection water tank 210 and is slidably connected to the detection water tank 210 .

[0089] The first end of the first elastic element 278 is connected to the mobile electrode 275, and the second end is connected to the carrier 100 or the detection water tank. The first elastic element 278 is used to provide elastic force to the mobile electrode 275, so that the mobile electrode 275 has a tendency to move from the second position to the first position, so that the external force applied to the mobile electrode 275 is less than the elastic force applied by the first elastic element 278 to the mobile electrode 275 or when the external force applied to the mobile electrode 275 disappears, the mobile electrode 275 will move from the second position to the first position under the elastic force of the first elastic element 278. The first elastic element 278 can be any element that can provide elastic force, such as a spring, a rubber band, a rubber spring, etc. In this embodiment, the first elastic element 278 is a spring.

[0090] The first end of the first pull wire 277 is fixedly connected to the mobile electrode 275, and the second end is fixedly connected to the second floating block 276. In the working state, the second floating block 276 moves as the water level of the sewage in the detection tank 210 changes. In the process that the distance between the second floating block 276 and the mobile electrode 275 increases, the second floating block 276 applies a pulling force to the mobile electrode 275 through the first pull wire 277. When the pulling force applied by the first pull wire 277 to the second floating block 276 is greater than the elastic force applied by the first elastic member to the mobile electrode 275, the mobile electrode 275 overcomes the elastic force of the first elastic member and moves from the first position to the second position. As the distance between the second floating block 276 and the movable electrode 275 decreases, the tension applied by the first pull wire 277 on the second floating block 276 will decrease or even disappear. When the tension applied by the first pull wire 277 on the second floating block 276 is less than the elastic force applied by the first elastic member on the movable electrode 275 or the tension applied by the first pull wire 277 on the second floating block 276 disappears, the movable electrode 275 will move from the second position to the first position under the action of the elastic force of the first elastic member.

[0091] Alternatively, if Fig.10 , 11 As shown, when the second float 276 moves upward as the water level of the sewage in the detection tank 210 rises, the distance between the second float 276 and the movable electrode 275 increases. During this process, the second float 276 applies a pulling force to the movable electrode 275 through the first pull wire 277. When the pulling force applied by the first pull wire 277 on the second float 276 is greater than the elastic force applied by the first elastic member on the movable electrode 275, the movable electrode 275 overcomes the elastic force of the first elastic member and moves from the first position to the second position.

[0092] When the second float 276 moves downward as the water level of the sewage in the detection tank 210 drops, the distance between the second float 276 and the movable electrode 275 becomes smaller. During this process, the tension applied by the first pull wire 277 on the second float 276 will become smaller or even disappear. When the tension applied by the first pull wire 277 on the second float 276 is less than the elastic force applied by the first elastic member on the movable electrode 275 or the tension applied by the first pull wire 277 on the second float 276 disappears, under the action of the elastic force of the first elastic member, the movable electrode 275 will move from the second position to the first position.

[0093] Alternatively, if Figure 8 , 9 As shown, when the second float 276 moves downward as the water level of the sewage in the detection tank 210 drops, the distance between the second float 276 and the movable electrode 275 increases. During this process, the second float 276 applies a pulling force to the movable electrode 275 through the first pull wire 277. When the pulling force applied by the first pull wire 277 on the second float 276 is greater than the elastic force applied by the first elastic member on the movable electrode 275, the movable electrode 275 overcomes the elastic force of the first elastic member and moves from the first position to the second position.

[0094] When the second float 276 moves upward as the water level of the sewage in the detection tank 210 rises, the distance between the second float 276 and the movable electrode 275 becomes smaller. During this process, the tension applied by the first pull wire 277 on the second float 276 will become smaller or even disappear. When the tension applied by the first pull wire 277 on the second float 276 is less than the elastic force applied by the first elastic member on the movable electrode 275 or the tension applied by the first pull wire 277 on the second float 276 disappears, under the action of the elastic force of the first elastic member, the movable electrode 275 will move from the second position to the first position.

[0095] The control mechanism provided in this embodiment has a simple structure, a reasonable design, and is composed of a mechanical structure, which is more reliable and durable.

[0096] like Figure 1 As shown, in this embodiment, a gravity element 280 is provided at the second end of the water inlet pipe 220. The gravity element 280 applies a pulling force to the water inlet pipe 220, so that the water inlet pipe 220 remains in a stable state, that is, the water inlet pipe 220 will not deviate or swing arbitrarily due to the flow of water in the sewage pool, thereby achieving the purpose of ensuring that the depth of water pumping remains basically consistent.

[0097] like Figure 1As shown, the water quality detection device for sewage treatment also includes a connecting component, which is used to connect with the traction rope to achieve the purpose of fixing the water quality detection device at the target position. Of course, there are multiple connecting components, and the multiple connecting components are respectively connected to the multiple traction ropes, so that the water quality detection device will not drift with the flow of sewage, thereby achieving the purpose of improving the stability of the fixation of the water quality detection device.

[0098] Since the water level of the sewage in the treatment pool varies, if the water quality detection device installed in the treatment pool cannot move with the change of the water level of the sewage in the treatment pool, when the water level of the sewage in the treatment pool drops to the point where the water inlet pipe is exposed to the water surface, the water quality detection device will be unable to detect the sewage in the treatment pool. Figure 12-14 As shown, in this embodiment, the connecting assembly includes a reel 310 , a scroll torsion spring (not shown in the drawings), a third floating block 320 and a transmission element 330 .

[0099] The reel 310 is wound with a cable 340, and the reel 310 is fixedly connected to the carrier 100 via a ratchet 351 structure 350, so that the reel 310 can only rotate in a preset direction to wind up the cable 340. When in use, the cable 340 is fixedly connected to the traction rope, thereby achieving the purpose of fixing the entire water quality detection device.

[0100] like Fig.12 , 13 As shown, a mounting frame 110 is disposed on the carrier 100 , and the reel 310 is rotatably connected to the mounting frame 110 via a ratchet 351 structure 350 . The ratchet 351 structure 350 includes a ratchet 351 , ratchet teeth 352 and a second elastic member 353 .

[0101] The ratchet 351 is coaxially arranged with the reel 310 and fixedly connected with the reel 310, and ratchet teeth are evenly arranged on the side wall of the ratchet 351. The ratchet teeth 352 are movably connected with the mounting frame 110, for example, hinged or slidably connected. In this embodiment, the ratchet teeth 352 are slidably connected with the mounting frame 110.

[0102] The second elastic member 353 is disposed between the ratchet 352 and the mounting frame. In a natural state, the second elastic member 353 is used to apply elastic force to the ratchet 352 so that the ratchet 352 has a tendency to move in a direction close to the axis of the ratchet wheel 351. When the ratchet 352 is hinged to the mounting frame, the second elastic member 353 is an elastic element capable of applying torsion force to the ratchet 352, such as a torsion spring; when the ratchet 352 is slidably connected to the mounting frame, the second elastic member 353 is an elastic element capable of applying tension or pressure to the ratchet 352, such as a spring, a rubber band, a rubber spring, etc. In this embodiment, the second elastic member 353 is a spring.

[0103] The spiral torsion spring is arranged at the rotation center of the drum 310, and the two ends of the spiral torsion spring are respectively connected to the drum 310 and the carrier 100. In the working state, the spiral torsion spring applies elastic force to the drum 310 so that the drum 310 has a tendency to rotate in a preset direction.

[0104] The third floating block 320 is movably connected to the carrier 100. In this embodiment, the third floating block 320 is slidably connected to the carrier 100. And the third floating block 320 can move longitudinally as the water level of the sewage in the sewage treatment tank changes, that is, the average density of the third floating block 320 is less than the density of the sewage, so that the third floating block 320 can float on the liquid surface. When the water level of the sewage in the sewage treatment tank rises, under the action of buoyancy, the third floating block 320 moves upward as the water level rises; when the water level of the sewage in the sewage treatment tank drops, under the action of gravity, the third floating block 320 moves downward as the water level drops.

[0105] like Fig.14 As shown, a sliding hole 120 is opened at the bottom of the carrier 100 , and the third floating block 320 is slidably disposed in the sliding hole 120 .

[0106] The first end of the transmission element 330 is connected to the third floating block 320, and the second end is connected to the ratchet teeth 352 of the ratchet wheel 351 structure 350. The transmission element 330 can be a transmission rod, a transmission shaft, and a pull rope. In this embodiment, the transmission element 330 is a pull rope.

[0107] In the working state, when the water level of the sewage in the treatment tank drops, the third floating block 320 moves downward under the action of gravity, and applies tension to the ratchet 352 through the transmission element 330, so that the ratchet 352 overcomes the elastic force of the second elastic member 353 and moves in the direction away from the axis of the ratchet 351, and separates from the ratchet, thereby releasing the one-way locking state of the ratchet 351 structure 350, so that the reel 310 can rotate in the reverse direction, thereby releasing the cable 340, and then the entire water quality detection device can move downward under the action of gravity, so as to achieve the purpose of ensuring that the detection depth of the water quality detection device remains basically consistent. At the same time, the situation of failure to detect will not occur due to the drop in the sewage water level in the treatment tank.

[0108] When the water level of the sewage in the sewage pool stops dropping, the third float block 320 can no longer drop due to the buoyancy, and the ratchet teeth 352 clash with each other under the elastic force of the second elastic member 353, so that the reel 310 cannot rotate in the reverse direction, that is, the reel 310 cannot release the cable 340, thereby achieving the purpose of keeping the water quality detection device at the target position.

[0109] When the water level in the sewage pool rises, the entire water quality detection device moves upward under the action of buoyancy, and the reel 310 rotates forward under the action of the elastic force of the scroll torsion spring to reel in the cable.

[0110] Of course, the carrier 100 is provided with a wireless transmission device to transmit the detected information to the monitoring platform.

[0111] like Figure 1 As shown, the water quality detection device also includes a photovoltaic component 400 arranged on the top of the carrier 100, and the photovoltaic component 400 is used to convert solar energy into electrical energy to provide electrical energy for electrical components on the carrier 100 (for example: the first water pump 230, the second water pump 260, the detector 240, the detection element, the controller, the wireless transmission device, etc.).

[0112] Preferably, a storage battery is also provided on the carrier 100 to store the electric energy generated by the photovoltaic assembly 400 and provide electric energy for the electric components on the carrier 100 .

[0113] In the description of the present invention, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0114] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A water quality detection device for sewage treatment, characterized in that: include: A carrier (100) capable of floating on the water surface; as well as A detection component, which is arranged on the carrier (100), comprises: A detection water tank (210) disposed at the bottom of the carrier (100); A water inlet pipe (220), a first end of which is connected to and communicates with the detection water tank (210), and a second end of which extends outside the detection water tank (210); A detector (240) is arranged on the carrier (100), and a detection end thereof extends into the detection water tank (210); A first water pump (230), which is arranged on the carrier (100) and communicates with the water inlet pipe (220), and is used to pump sewage into the detection water tank (210) for detection; a water outlet pipe (250), a first end of which is connected to and communicates with the detection water tank (210), and a second end of which extends outside the detection water tank (210); and A second water pump (260) is disposed on the carrier (100) and is in communication with the water outlet pipe (250). The second water pump (260) is used to pump out the sewage in the detection water tank (210) after the detection of the detection component is completed.

2. The water quality detection device for sewage treatment according to claim 1, characterized in that: The detection component further comprises a control mechanism, which is arranged on the carrier (100) or the detection water tank (210), and when the water level of sewage pumped into the detection water tank (210) by the first water pump (230) reaches a preset height, the control mechanism shuts down the first water pump (230).

3. The water quality detection device for sewage treatment according to claim 2, characterized in that: The control mechanism comprises a liquid level sensor (271), the liquid level sensor (271) is arranged in the detection water tank (210), the liquid level sensor (271) is fixedly connected to the detection water tank (210) or the carrier (100), and the liquid level sensor (271) is electrically connected to the controller; Wherein, in the working state, when the liquid level sensor (271) detects that the liquid level in the detection water tank (210) reaches a preset height, the liquid level sensor (271) transmits the detected information to the controller, and the controller controls the first water pump (230) to be turned off.

4. The water quality detection device for sewage treatment according to claim 2, characterized in that: The control mechanism comprises: a first floating block (272) which is movably connected to the detection water tank (210) and is capable of moving longitudinally as the water level of sewage in the detection water tank (210) changes; and a detection element, which is arranged on the detection water tank (210) or the carrier (100), is electrically connected to the controller, and is used to detect the position of the first floating block (272) and transmit the detected position information of the first floating block (272) to the controller; In the working state, when the detection element detects that the first floating block (272) reaches a preset position, the detection element transmits information to the controller, thereby shutting down the first water pump (230) through the controller.

5. The water quality detection device for sewage treatment according to claim 4, characterized in that: The detection element comprises a distance sensor (273), the distance sensor (273) is fixedly connected to the detection water tank (210) or the carrier (100), the distance sensor (273) is electrically connected to the controller, and the distance sensor (273) is used to detect the distance between the distance sensor and the first floating block (272); In the working state, when the distance measuring sensor (273) detects that the distance between it and the first floating block (272) reaches a preset value, the distance measuring sensor (273) transmits the detected information to the controller, thereby shutting down the first water pump (230) through the controller.

6. The water quality detection device for sewage treatment according to claim 4, characterized in that: The detection element comprises a pull-wire displacement sensor (274), the pull-wire displacement sensor (274) is fixedly connected to the detection water tank (210) or the carrier (100), the pull-wire displacement sensor (274) is electrically connected to the controller, and the steel wire of the pull-wire displacement sensor (274) is fixedly connected to the first floating block (272); In the working state, when the pull-wire displacement sensor (274) detects that the first floating block (272) moves to a preset position, the pull-wire displacement sensor (274) transmits the detected information to the controller, thereby shutting down the first water pump (230) through the controller.

7. The water quality detection device for sewage treatment according to claim 2, characterized in that: The control mechanism comprises: a mobile electrode (275), which is arranged on the input circuit of the first water pump (230), is movably connected to the carrier (100), and has a first position and a second position. When the mobile electrode (275) is placed in the first position, the mobile electrode (275) connects the input circuit of the first water pump (230); when the mobile electrode (275) is placed in the second position, the mobile electrode (275) disconnects the input circuit of the first water pump (230); A second floating block (276) is movably connected to the detection water tank (210) and is capable of moving longitudinally as the water level of sewage in the detection water tank (210) changes; A first elastic element (278), a first end of which is connected to the movable electrode (275) and a second end of which is connected to the carrier (100) or the detection water tank (210), and is used to provide elastic force to the movable electrode (275) so that the movable electrode (275) has a tendency to move from the second position to the first position; A first pull wire (277), a first end of which is fixedly connected to the movable electrode (275), and a second end of which is fixedly connected to the second floating block (276); In the working state, when the distance between the second floating block (276) and the movable electrode (275) increases, the second floating block (276) applies a pulling force to the movable electrode (275) through the first pulling wire (277), so that the movable electrode (275) can overcome the elastic force of the first elastic member and move from the first position to the second position, thereby disconnecting the input circuit of the first water pump (230).

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