A water intake and filtering device for an automatic water quality monitoring station

Abstract

The invention relates to the technical field of water filtration, and specifically discloses a water filtration device for an automatic water quality monitoring station, comprising a water filtration device body, which comprises an outer cylinder and a submersible pump; an inner cylinder, which is installed on the inner side of the outer cylinder and sleeved on the inner side of the outer cylinder; a fine filter, which is slidably installed in a closed frame; a closed cover, which is installed on the outside of the submersible pump and is used to cover the submersible pump, and an annular cavity is formed between the closed cover and the inner cylinder; a movable plate, which is connected in the annular cavity; a cleaning motor drives a screw rod to rotate, and then the screw rod drives the movable plate to move up and down, and when the movable plate moves downward, the air in the annular cavity can be squeezed downward by the squeezing effect of the movable plate on the annular cavity, and the water is driven to flow in the direction of the water inlet and the filter cover by the air squeezing, and when a certain speed is reached, the fine filter and the filter cover at the water inlet can be impacted, thereby flushing the sediments on the fine filter and the filter cover at the water inlet, so as to achieve the purpose of self-cleaning.

Description

Technical Field

[0001] The invention relates to the technical field of water intake and filtration, and in particular to a water intake and filtration device for an automatic water quality monitoring station. Background Art

[0002] The water intake and filtration device of the automatic water quality monitoring station is an important component to ensure the accuracy and stability of water quality monitoring data. This device usually includes a water intake unit, a filtration system and related auxiliary equipment. The float-type water intake device uses a float and a submersible pump or a self-priming pump and other equipment to draw water from the water body. It is suitable for monitoring points with large water level changes such as rivers and lakes. The float can float up and down with the change of water level to ensure that the water intake is always below the water surface. At the same time, the mesh on the float can coarsely filter out larger floating grass and debris to prevent them from entering the pump body. The filtration system is the core part of the water intake and filtration device. Its main function is to remove impurities such as suspended matter and particulate matter in the water sample to protect subsequent monitoring equipment from damage and improve the accuracy of monitoring data;

[0003] Prior art patent publication number: CN213375335U, discloses a device for collecting water for water quality monitoring. The device has a sediment separation function, is not only detachable and easy to carry, but also does not require separate filtering and is easy to operate. It can separate or not separate sediment according to the selection, is easy to use, and has high sampling efficiency. It can also replace filters with different apertures as needed, and can increase the water storage cavity space to improve the separation effect.

[0004] Although the water intake filter device of the prior art can filter coarser particles in the water, when these large particles adhere to the filter net, they form sediments, which easily clog the filter holes on the filter net. The water intake device needs to be taken out of the water surface and then the sediments need to be removed, which is inconvenient to use. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] The present invention provides a water quality automatic monitoring station water intake and filtering device, which can solve the problem that the water intake device in the prior art is difficult to self-clean. The specific scheme is as follows:

[0007] A water intake filter device for an automatic water quality monitoring station includes a water intake filter device body, the water intake filter device body is installed in a water area through a bracket, a pier is further provided on one side of the bracket, the bracket is fixed on the side of the pier, and the water intake filter device body includes:

[0008] The outer cylinder is placed inside the bracket, and one end of the outer cylinder is provided with a water inlet, on which a coarse filter screen is installed;

[0009] A submersible pump, fixedly installed inside the outer cylinder;

[0010] An inner cylinder is installed on the inner side of the outer cylinder, and the inner cylinder is sleeved on the inner side of the outer cylinder;

[0011] There are a plurality of closed frames, which are evenly distributed around the inner cylinder, the thickness of the closed frames matches the width of the gap between the inner cylinder and the outer cylinder, and an annular cavity is formed between the closed cover and the inner cylinder;

[0012] A fine filter screen is slidably mounted in the closed frame;

[0013] A closing cover, installed on the outside of the submersible pump, for covering the submersible pump;

[0014] A movable plate is connected in the annular cavity. When the movable plate moves downward under the drive of the driving device, the movable plate squeezes the annular cavity, so that the air in the annular cavity is squeezed downward, and the water flows toward the water inlet, causing an impact on the fine filter at the water inlet.

[0015] The driving device drives the movable plate to move downward. When the movable plate moves downward, the movable plate squeezes the annular cavity, so that the air in the annular cavity can be squeezed downward, and the water is driven to flow toward the water inlet and the filter cover through the air squeezing. When a certain speed is reached, the fine filter screen and the filter cover at the water inlet can be impacted, thereby flushing the sediment on the fine filter screen and the filter cover at the water inlet, thereby achieving the purpose of self-cleaning.

[0016] Preferably, the pier is made of bricks and cement, and is coated with waterproof material on the surface, and the bracket is welded by multiple vertical and horizontal galvanized pipes.

[0017] Preferably, both sides of the bracket are fixedly connected with slide rails, the outer wall of the outer cylinder is fixedly connected with a slider, the slider is slidably connected with the slide rails, and a winding assembly is provided on the top of the pier, and the winding assembly includes:

[0018] A steel wire rope, the bottom end of which is fixedly connected to the top of the outer cylinder and the top of which extends to the top of the pier;

[0019] There are a plurality of fixed pulleys, on which the top of the steel wire rope is wound;

[0020] A winding drum, on which the top of the steel wire rope is finally fixed after passing through a plurality of fixed pulleys, and the winding drum is rotatably mounted on the top of the pier through a rotating frame;

[0021] A winding motor, wherein the output shaft of the winding motor is connected to one end of the winding drum. When the winding motor is started, the winding drum can be driven to rotate forward and reverse to realize the winding and releasing of the wire rope, thereby driving the outer cylinder to move up and down;

[0022] When the winding motor is started, it can drive the winding drum to rotate forward and reverse, thereby realizing the reeling and releasing of the wire rope, thereby controlling the up and down position of the outer cylinder, so that water at different depths can be collected, and the outer cylinder can be lifted to a position roughly equivalent to the top of the pier, so that the inside of the outer cylinder can be inspected and cleaned, thereby manually cleaning stubborn sediments.

[0023] Preferably, the upper part of the outer cylinder has a plurality of floating balls, the plurality of floating balls are tied together by a connecting rope, and both ends of the connecting rope extend to the top of the outer cylinder and are fixed to the top of the outer cylinder. When the floating balls and the outer cylinder are placed on the water surface, the floating balls float on the water surface, and the outer cylinder is suspended at the bottom of the floating balls;

[0024] Through the above scheme, when the float and the outer cylinder are placed on the water surface, the float can float on the water surface, and the outer cylinder and the parts inside the outer cylinder can be suspended at the bottom of the float. The buoyancy generated by the float can prevent the outer cylinder and its internal components from sinking to the bottom of the water.

[0025] Preferably, the water intake and filtering device body further includes:

[0026] An annular plate, fixedly connected to the top of the closing cover, the outer wall of the annular plate contacts the inner wall of the inner cylinder, and the movable plate is located below the annular plate;

[0027] A cleaning motor is fixedly mounted on the top of the annular plate;

[0028] The top of the screw rod is rotatably connected to the annular plate, the bottom of the screw rod is rotatably connected to the bottom of the inner wall of the outer cylinder, and the middle part is threadedly connected to the movable plate. When the cleaning motor drives the screw rod to rotate forward and reverse, it can drive the movable plate to slide up and down;

[0029] Through the above scheme, when the cleaning motor drives the screw to rotate, and then the screw drives the movable plate to move up and down, when the movable plate moves downward, the squeezing effect of the movable plate on the annular cavity can make the air in the annular cavity squeezed downward, and the water is driven to flow in the direction of the water inlet and the filter cover through the air squeezing, and when a certain speed is reached, the fine filter screen and the filter cover at the water inlet can be impacted, thereby flushing the sediment on the fine filter screen and the filter cover at the water inlet, achieving the purpose of self-cleaning, and the cleaning motor can be started regularly by adjusting the controller to achieve the purpose of regular self-cleaning, thereby ensuring the filtering effect of the fine filter screen.

[0030] Preferably, a blade is fixedly connected to the bottom of the screw rod, and the blade has a plurality of blades, which are evenly distributed on the outer wall of the screw rod, and the blades are located just on one side of the water inlet;

[0031] In the above scheme, when the screw rotates, the blades rotate synchronously therewith. When the blades rotate, the water at the water inlet can be accelerated to flow into the filter cover at the bottom of the submersible pump, and then enter the interior of the submersible pump.

[0032] Preferably, a slot is provided on the top of the closed frame, and the fine filter is slidably installed in the closed frame through the slot, and a handle is connected to the top of the fine filter.

[0033] Preferably, the top of the inner tube is evenly provided with connecting ears, the connecting ears are threadedly connected with a knob, and the inner wall of the outer tube is provided with a threaded hole matching the knob, and the knob can be screwed into the threaded hole;

[0034] In the above scheme, when it is necessary to select fine filters with different apertures, first loosen the knob on the top of the inner cylinder so that the inner cylinder and the outer cylinder can rotate freely, and then rotate the inner cylinder so that the closed frame equipped with fine filters of different specifications matches the water inlet. When external water enters, it can pass through the fine filter and then flow into the filter cover at the bottom of the submersible pump, thereby filtering water of different water qualities.

[0035] Preferably, a power cord and a water outlet pipe are connected to the top of the submersible pump, a hole matching the power cord and the water outlet pipe is opened on the top of the closure cover, and the outer walls of the power cord and the water outlet pipe are tightly engaged with the two holes respectively.

[0036] Preferably, a plug rod is provided at the bottom of the bracket, and the plug rod is welded to the bottom of the bracket. Before the bracket is fixed to the pier, the plug rod is tightly plugged into the soil at the bottom of the water;

[0037] In the above scheme, the bracket can prevent wind from affecting the water intake and filtering device body, thereby achieving a windproof effect. The side of the bracket is fixed to the side of the pier by rivets to prevent the bracket from tipping over. The inserted rod can further increase the stability of the bracket installed in the water area.

[0038] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0039] 1. The cleaning motor drives the screw to rotate, and then the screw drives the movable plate to move up and down. When the movable plate moves downward, the movable plate squeezes the annular cavity, which can squeeze the air in the annular cavity downward. The air squeeze drives the water to flow toward the water inlet and the filter cover, and when a certain speed is reached, it can impact the fine filter and filter cover at the water inlet, thereby flushing the sediment on the fine filter and filter cover at the water inlet to achieve the purpose of self-cleaning.

[0040] 2. By setting up multiple fine filters with different sieve holes, when you need to select fine filters with different apertures, first loosen the knob on the top of the inner cylinder so that the inner cylinder and the outer cylinder can rotate freely, and then rotate the inner cylinder so that the closed frame equipped with fine filters of different specifications matches the water inlet. When external water enters, it can pass through the fine filter and then flow into the filter cover at the bottom of the submersible pump, thereby filtering water of different water qualities.

[0041] 3. By setting a screw rod, when the cleaning motor screw rod rotates, the blades rotate synchronously with it. When the blades rotate, the water at the water inlet can be accelerated to flow into the filter cover at the bottom of the submersible pump, and then enter the interior of the submersible pump.

[0042] 4. The winding motor is started to drive the winding disc to rotate forward and backward, so as to realize the reeling and releasing of the wire rope, thereby controlling the up and down position of the outer cylinder, so that water at different depths can be collected, and the outer cylinder can be lifted to a position roughly equivalent to the top of the pier, so as to inspect and clean the inside of the outer cylinder, and manually clean the stubborn sediments.

[0043] Other features and advantages of the present invention will be described in the following description, and part of them will become obvious from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0045] Figure 1 This is a schematic diagram of the installation of the water intake and filtration device body, bracket and pier of the present invention;

[0046] Figure 2 This is a schematic diagram of the installation of the water intake and filtration device body and the bracket of the present invention;

[0047] Figure 3 It is a three-dimensional diagram of the water intake and filtering device body of the present invention;

[0048] Figure 4 A three-dimensional diagram of the annular plate and the movable plate of the present invention;

[0049] Figure 5 It is a three-dimensional diagram of the inner cylinder of the present invention;

[0050] Figure 6 A three-dimensional diagram of the inner cylinder and the fine filter screen of the present invention;

[0051] Figure 7 A half-section view of the water intake and filtering device body of the present invention;

[0052] Figure 8 A quarter cross-sectional view of the water intake and filtration device body of the present invention;

[0053] Fig. 9 For the present invention Figure 8 Enlarged view of point A in the middle;

[0054] Fig.10 It is a front cross-sectional view of the present invention;

[0055] Fig.11 It is a front cross-sectional view of the inner cylinder and the closing cover of the present invention.

[0056] The reference numerals are as follows:

[0057] 1. Water intake and filtration device body; 101. Outer cylinder; 102. Sliding block; 103. Water inlet; 104. Floating ball; 105. Connecting rope; 106. Wire rope; 107. Fixed pulley; 108. Winding disc; 109. Winding motor; 110. Submersible pump; 111. Inner cylinder; 112. Knob; 113. Closing frame; 114. Through hole; 115. Fine filter; 116. Closing cover; 117. Annular plate; 118 Movable plate; 119. Spring; 120. Screw rod; 121. Blade; 122. Filter cover; 123. Power cord; 124. Water outlet pipe; 125. Cleaning motor; 2. Bracket; 201. Slide rail; 202. Insert rod; 3. Pier DETAILED DESCRIPTION

[0058] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used to explain the principles of the present invention together with the embodiments of the present invention.

[0059] Example 1: See Figure 1-Figure 11The present embodiment provides a water quality automatic monitoring station water intake and filtration device, including a water intake and filtration device body 1, which is used to sample water after filtering, and is installed in the water area to be monitored. In order to ensure that it can be fixed in the water area, a bracket 2 is provided, and the bracket 2 is fixed to the bottom of the water, and the top of the bracket 2 extends to the pier 3;

[0060] The bracket 2 is formed by welding a plurality of vertical and horizontal galvanized pipe fittings or fixing them by connecting pieces, and the connecting pieces can be angle steels. The bracket 2 can prevent the wind from affecting the water intake and filtering device body 1, thereby achieving a windproof effect. The side of the bracket 2 is fixedly installed on the side of the pier 3 by rivets, thereby preventing the bracket 2 from tipping over. In order to further increase the stability of the bracket 2 installed in the water area, a plug rod 202 can be set at the bottom of the bracket 2, and the plug rod 202 is fixed to the bottom of the bracket 2 by welding. Before fixing the bracket 2 to the pier 3, the plug rod 202 can be tightly plugged into the soil at the bottom of the water. The two ends of the bracket 2 are also connected to slide rails 201, thereby further increasing the firmness of the bracket 2 installation. The surface of the bracket 2 is coated with oily waterproof paint to prevent the surface of the bracket 2 from oxidizing when in contact with water.

[0061] The water intake and filtering device body 1 includes:

[0062] The outer cylinder 101 is placed inside the bracket 2, and a water inlet 103 is opened at one end of the outer cylinder 101. A coarse filter (not shown in the figure) is installed on the water inlet 103. The outer wall of the outer cylinder 101 is connected to a slider 102, and the slider 102 is slidably connected to the slide rail 201. By setting the slider 102 and the slide rail 201, the outer cylinder 101 can slide up and down stably inside the bracket 2;

[0063] The submersible pump 110 is fixedly installed inside the outer cylinder 101. A power cord 123 is connected to the top of the submersible pump 110. A water outlet pipe 124 is fixedly installed at the water outlet of the submersible pump 110. The power cord 123 is connected to an external power supply and a controller. Both the power supply and the controller are installed on the top of the pier 3. The power supply can provide power for the submersible pump 110. The controller can control the switch and power of the submersible pump 110. A filter cover 122 is provided at the bottom water inlet of the submersible pump 110. The filter cover 122 can form a gap between the bottom of the submersible pump 110 and the bottom of the inner wall of the outer cylinder 101, and can filter coarser particles to prevent large particles from damaging the internal blades of the submersible pump 110;

[0064] The inner cylinder 111 is installed on the inner side of the outer cylinder 101. The inner cylinder 111 is sleeved on the inner side of the outer cylinder 101. The top of the inner cylinder 111 is evenly provided with connecting ears (not shown in the figure). The connecting ears are connected with a knob 112. The inner wall of the outer cylinder 101 is provided with a threaded hole (not shown in the figure) matching with the knob 112. The knob 112 can be screwed into the threaded hole. There is a gap between the outer wall of the inner cylinder 111 and the inner wall of the outer cylinder 101.

[0065] There are several closed frames 113, which are evenly distributed around the inner cylinder 111. The thickness of the closed frames 113 matches the width of the gap between the inner cylinder 111 and the outer cylinder 101. The size of the closed frames 113 matches the water inlet 103. A through hole 114 is provided in each closed frame 113, and a card slot (not shown in the figure) is provided on the top of the closed frame 113.

[0066] The fine filter 115 is slidably mounted in the closed frame 113, and the fine filter 115 is inserted from the card slot at the top of the closed frame 113 (such as Figure 6 As shown), and in order to facilitate the removal of the fine filter 115, a handle is connected to the top of the fine filter 115. The inner diameters of the sieve holes on the fine filter 115 installed in each closed frame 113 are different, so that the fine filter 115 can be selected according to different water qualities. The specific solution is: when it is necessary to select fine filters 115 with different apertures, first loosen the knob 112 on the top of the inner cylinder 111 so that the inner cylinder 111 and the outer cylinder 101 can rotate freely, and then rotate the inner cylinder 111 so that the closed frame 113 equipped with fine filters 115 of different specifications matches the water inlet 103, so that when external water enters, it can pass through the fine filter 115 and then flow into the filter cover 122 at the bottom of the submersible pump 110, thereby filtering water of different water qualities;

[0067] The closed cover 116 is installed outside the submersible pump 110 and can completely cover the submersible pump 110. A hole matching the power cord 123 and the water outlet pipe 124 is opened on the top of the closed cover 116, so that the power cord 123 and the water outlet pipe 124 can extend to the outside of the closed cover 116, and a heat dissipation space is left between the inner wall of the closed cover 116 and the submersible pump 110, and an annular cavity is formed between the closed cover 116 and the inner cylinder 111;

[0068] The annular plate 117 is fixedly connected to the top of the sealing cover 116, and the outer wall of the annular plate 117 is in contact with the inner wall of the inner cylinder 111;

[0069] The movable plate 118 is connected in the annular cavity and can move up and down in the annular cavity under the drive of the driving device. A spring 119 is connected between the top of the movable plate 118 and the bottom of the annular plate 117. Through the squeezing effect of the spring 119, the movable plate 118 can be more tightly connected with the screw rod 120 described below without loosening up and down. The outer wall of the movable plate 118 is provided with a limiting structure, so that the movable plate 118 can only slide up and down but cannot rotate;

[0070] The cleaning motor 125 is fixedly mounted on the top of the annular plate 117. The bottom output shaft of the cleaning motor 125 is connected with a screw rod 120. The screw rod 120 is threadedly connected to one end of the movable plate 118. The bottom of the screw rod 120 is rotatably connected to the bottom of the inner wall of the outer cylinder 101 through a bearing. When the cleaning motor 125 drives the screw rod 120 to rotate forwards and backwards, it can drive the movable plate 118 to slide up and down. In order to achieve a sealing effect, a sealing ring is provided at the rotation connection between the screw rod 120 and the annular plate 117, so that when the movable plate 118 is pressed downward, the gas inside the annular cavity will not leak out from the rotation connection between the screw rod 120 and the annular plate 117.

[0071] In the above solution, an annular cavity (such as Fig.11 As shown), the annular cavity is separated from the submersible pump 110 by a closed cover 116, and water can only enter the submersible pump 110 through the filter cover 122 at the bottom of the submersible pump 110, and the annular cavity is connected to the outside through the water inlet 103. Through the above scheme, when the cleaning motor 125 drives the screw rod 120 to rotate, and then the screw rod 120 drives the movable plate 118 to move up and down, when the movable plate 118 moves downward, the air in the annular cavity can be squeezed downward by the squeezing effect of the movable plate 118 on the annular cavity, and the water is driven to flow toward the water inlet 103 and the filter cover 122 through the air squeezing, and when a certain speed is reached, the fine filter 115 and the filter cover 122 at the water inlet 103 can be impacted, thereby flushing the sediment on the fine filter 115 and the filter cover 122 at the water inlet 103, so as to achieve the purpose of self-cleaning, and the cleaning motor 125 can be started regularly by adjusting the controller to achieve the purpose of regular self-cleaning, thereby ensuring the filtering effect of the fine filter 115;

[0072] like Figure 4As shown, as an optimized solution, a blade 121 is fixedly connected to the bottom of the screw rod 120, and there are multiple blades 121, which are evenly distributed on the outer wall of the screw rod 120, and the position of the blade 121 is just located on one side of the water inlet 103, the purpose of which is: when the screw rod 120 rotates, the blade 121 rotates synchronously with it, and when the blade 121 rotates, the water at the water inlet 103 can be accelerated to flow into the filter cover 122 at the bottom of the submersible pump 110, so as to enter the interior of the submersible pump 110;

[0073] like Figure 3 As shown, as an optimized solution, a plurality of floating balls 104 are provided on the upper part of the outer cylinder 101, and the plurality of floating balls 104 are bound together by a connecting rope 105, and both ends of the connecting rope 105 extend to the top of the outer cylinder 101 and are fixed to the top of the outer cylinder 101. Through the above solution, when the floating balls 104 and the outer cylinder 101 are placed on the water surface, the floating balls 104 can float on the water surface, and the outer cylinder 101 and the parts inside the outer cylinder 101 can be suspended at the bottom of the floating balls 104, and the buoyancy generated by the floating balls 104 can prevent the outer cylinder 101 and the components inside the outer cylinder 101 from sinking to the bottom of the water;

[0074] like Figure 1 , Figure 2 , Figure 3 As shown, in order to facilitate the outer cylinder 101 to be lifted to the top of the pier 3, a winding assembly can be provided on the pier 3, and the winding assembly includes:

[0075] The steel wire rope 106 has its bottom end fixedly connected to the top of the outer cylinder 101 and its top extending to the top of the pier 3;

[0076] There are several fixed pulleys 107, and the top of the wire rope 106 is wound around the several fixed pulleys 107;

[0077] The winding drum 108 and the top of the wire rope 106 are finally fixed on the winding drum 108 after passing through several fixed pulleys 107. The winding drum 108 is rotatably installed on the top of the pier 3 through a rotating frame. One end of the winding drum 108 is connected to a winding motor 109. The output shaft of the winding motor 109 is connected to one end of the winding drum 108. When the winding motor 109 is started, it can drive the winding drum 108 to rotate forward and reverse, thereby realizing the winding and releasing of the wire rope 106, thereby controlling the up and down positions of the outer cylinder 101, so that water at different depths can be collected, and the outer cylinder 101 can be lifted to a position roughly equivalent to the top of the pier 3, so that the inside of the outer cylinder 101 can be inspected and cleaned, thereby manually cleaning stubborn sediments.

[0078] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0079] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A water intake and filtration device for an automatic water quality monitoring station, comprising a water intake and filtration device body (1), characterized in that: The water intake and filtering device body (1) is installed in a water area via a bracket (2); a pier (3) is provided on one side of the bracket (2); the bracket (2) is fixed on the side of the pier (3); the water intake and filtering device body (1) comprises: The outer cylinder (101) is placed inside the bracket (2), and has a water inlet (103) at one end thereof, and a coarse filter screen is installed on the water inlet (103); A submersible pump (110) fixedly mounted inside the outer cylinder (101); An inner cylinder (111) is mounted on the inner side of the outer cylinder (101), and the inner cylinder (111) is sleeved on the inner side of the outer cylinder (101); A plurality of closed frames (113) are evenly distributed around the inner cylinder (111), and the thickness of the closed frames (113) matches the width of the gap between the inner cylinder (111) and the outer cylinder (101); A fine filter (115) slidably mounted in the closed frame (113); A sealing cover (116) is installed outside the submersible pump (110) and is used to cover the submersible pump (110), wherein an annular cavity is formed between the sealing cover (116) and the inner cylinder (111); The movable plate (118) is connected in the annular cavity. When the movable plate (118) moves downward under the drive of the driving device, the movable plate (118) exerts an extrusion effect on the annular cavity, so that the air in the annular cavity is squeezed downward, causing water to flow toward the water inlet (103), thereby impacting the fine filter (115) at the water inlet (103).

2. A water quality automatic monitoring station water intake and filtration device as claimed in claim 1, characterized in that: The pier (3) is made of bricks and cement, and is coated with waterproof material on the surface. The bracket (2) is welded from a plurality of vertical and horizontal galvanized pipe fittings.

3. A water quality automatic monitoring station water intake and filtration device as claimed in claim 1, characterized in that: Slide rails (201) are fixedly connected to both sides of the bracket (2), a slider (102) is fixedly connected to the outer wall of the outer cylinder (101), the slider (102) is slidably connected to the slide rails (201), and a winding assembly is arranged on the top of the pier (3), the winding assembly comprising: A steel wire rope (106), the bottom end of which is fixedly connected to the top of the outer cylinder (101), and the top of which extends to the top of the pier (3); There are a plurality of fixed pulleys (107), and the top of the steel wire rope (106) is wound around the plurality of fixed pulleys (107); A winding drum (108), the top of the steel wire rope (106) is finally fixed on the winding drum (108) after passing through a plurality of fixed pulleys (107), and the winding drum (108) is rotatably mounted on the top of the pier (3) via a rotating frame; A winding motor (109), wherein the output shaft of the winding motor (109) is connected to one end of the winding drum (108), and when the winding motor (109) is started, it can drive the winding drum (108) to rotate forward and reverse, thereby realizing the winding and releasing of the steel wire rope (106), and driving the outer cylinder (101) to move up and down.

4. A water intake and filtering device for an automatic water quality monitoring station as claimed in claim 1, characterized in that: The upper part of the outer cylinder (101) is provided with a plurality of floating balls (104), and the plurality of floating balls (104) are tied together by a connecting rope (105), and both ends of the connecting rope (105) extend to the top of the outer cylinder (101) and are fixed to the top of the outer cylinder (101). When the floating balls (104) and the outer cylinder (101) are placed on the water surface, the floating balls (104) float on the water surface, and the outer cylinder (101) is suspended at the bottom of the floating balls (104).

5. The water intake and filtering device for an automatic water quality monitoring station as claimed in claim 1, characterized in that: The water intake and filtering device body (1) further comprises: an annular plate (117) fixedly connected to the top of the sealing cover (116), the outer wall of the annular plate (117) being in contact with the inner wall of the inner cylinder (111), and the movable plate (118) being located below the annular plate (117); A cleaning motor (125) fixedly mounted on the top of the annular plate (117); The top of the screw rod (120) is rotatably connected to the annular plate (117), the bottom of the screw rod is rotatably connected to the bottom of the inner wall of the outer cylinder (101), and the middle part is threadedly connected to the movable plate (118). When the cleaning motor (125) drives the screw rod (120) to rotate forwards and reversely, it can drive the movable plate (118) to slide up and down.

6. A water intake and filtering device for an automatic water quality monitoring station as claimed in claim 5, characterized in that: The bottom of the screw rod (120) is fixedly connected with a blade (121), and the blade (121) comprises a plurality of blades (121), and the plurality of blades (121) are evenly distributed on the outer wall of the screw rod (120), and the blades (121) are located just at one side of the water inlet (103).

7. The water intake and filtering device for an automatic water quality monitoring station as claimed in claim 1, characterized in that: The top of the closed frame (113) is provided with a slot, and the fine filter (115) is slidably installed in the closed frame (113) through the slot, and the top of the fine filter (115) is connected to a handle.

8. The water intake and filtering device for an automatic water quality monitoring station as claimed in claim 1, characterized in that: The top of the inner cylinder (111) is evenly provided with connection ears, and a knob (112) is threadedly connected to the connection ear. The inner wall of the outer cylinder (101) is provided with a threaded hole matching the knob (112), and the knob (112) can be screwed into the threaded hole.

9. The water intake and filtering device for an automatic water quality monitoring station as claimed in claim 1, characterized in that: The top of the submersible pump (110) is connected to a power cord (123) and a water outlet pipe (124); the top of the closure cover (116) is provided with a hole matching the power cord (123) and the water outlet pipe (124); the outer walls of the power cord (123) and the water outlet pipe (124) are tightly engaged with the two holes respectively.

10. The water intake and filtering device for an automatic water quality monitoring station as claimed in claim 1, characterized in that: An insertion rod (202) is provided at the bottom of the support (2), and the insertion rod (202) is welded to the bottom of the support (2). Before the support (2) and the pier (3) are fixed, the insertion rod (202) is tightly inserted into the soil at the bottom of the water.

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