Sample filtering device for water source environment detection

Abstract

The invention provides a sample filtering device for water source environment detection, and belongs to the technical field of sample filtering devices. Comprising a main body and a water inlet connector, the water inlet connector is fixedly connected to the outer wall of the main body, the connecting mechanism is arranged in the main body and comprises a sealing partition plate, a plurality of mounting ports are formed in the top of the sealing partition plate in a penetrating mode, and the filtering mechanism is arranged in the connecting mechanism. The push ring is supported in the primary filter bag, the poke rod penetrates through the insertion hole through the ball at the bottom to connect the poke rod with the bottom of the primary filter bag, and the poke rod and the push ring can drive the primary filter bag to shake together when a poke force is applied to the ball rod, so that impurities adsorbed in the primary filter bag can be discontinuously shaken away; therefore, in the long-time use process of the filter bag, impurities are prevented from being continuously attached to the inner wall of the first-stage filter bag, the phenomenon of serious filtering blockage of the first-stage filter bag is reduced, and the filtering efficiency of the filter bag is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sample filtering devices, in particular to a sample filtering device for water source environment detection. Background Art

[0002] Water samples from water sources often contain various impurities such as mud, algae, colloids, etc. When testing water samples, the large amount of impurities in the water samples will make the samples unable to meet the requirements of precise testing, so the water samples need to be filtered before testing.

[0003] During the use of the sample filtration device for water source environment testing, when water enters the filter cartridge inside the filtration device for filtration, a filter bag is generally installed at the entrance of the filter cartridge to allow the water sample entering the filtration device to be initially filtered through the filter bag, thereby avoiding larger impurities from entering the filter cartridge and causing filter cartridge blockage, so as to increase the service life of the filter cartridge. However, during the long-term use of the filter bag, impurities continue to adhere to the inner wall of the filter bag, which will cause filtration blockage and affect the filtration efficiency of the filter bag.

[0004] Therefore, the present application provides a sample filtering device for water source environment detection to meet the needs. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a sample filtering device for water source environment detection to solve the existing problem that impurities continue to adhere to the inner wall of the filter bag, causing filtration blockage and thus affecting the filtration efficiency of the filter bag.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: A sample filtering device for water source environment detection, comprising a main body and a water inlet connector, wherein the water inlet connector is fixedly connected to the outer wall of the main body, and further comprising: The connecting mechanism is arranged inside the main body, and the connecting mechanism includes a sealing partition, and a plurality of installation openings are opened through the top of the sealing partition; The filtering mechanism is arranged inside the connecting mechanism, and the filtering mechanism includes a plurality of secondary filter cartridges, and the plurality of secondary filter cartridges are detachably connected to the interior of the plurality of mounting ports, and the plurality of mounting ports are located above the secondary filter cartridges and are detachably connected to a primary filter bag; The movable mechanism is arranged on the top of the sealing partition, and is used in conjunction with the connecting mechanism to generate a shaking force on the first-stage filter bag.

[0007] Optionally, an extension ring is fixedly connected to the top of the main body, a plurality of bayonet holes are provided on the outer wall of the extension ring, an inner movable groove is provided on one end of the inner wall of the main body above the sealing partition, a plurality of sliding rods are fixedly connected to the top inner wall and the bottom inner wall of the inner movable groove, a bolt is provided at the bottom of the extension ring, a lower connecting ring is detachably connected to the bottom of the extension ring, an interlocking ring is fixedly connected to the inside of the lower connecting ring, a plurality of locking frames are rotatably connected to the outer wall of the interlocking ring, and the plurality of locking frames are respectively provided corresponding to the plurality of openings on the extension ring.

[0008] Optionally, a closing mechanism is provided at the top of the extension ring, and the closing mechanism includes a closing cover, which is detachably connected to the top of the extension ring, and a plurality of openings are provided on the outer wall of the closing cover, and the plurality of openings all correspond to the bayonet sockets on the extension ring, and a flat circular plate is fixedly connected to the bottom of the closing cover, and a connecting pipe is fixedly connected at the center between the top of the flat circular plate and the top of the closing cover, the connecting pipe passes through the bottom of the flat circular plate and the top of the main body, and a pressure gauge and a pressure relief valve are installed on the top of the connecting pipe.

[0009] Optionally, a sliding sleeve is slidably connected to the outer wall of the connecting tube, and four extension plates are fixedly connected to the outer wall of the sliding sleeve, wherein tension springs are fixedly connected between two extension plates and the flat circular plate, four air outlet holes are opened through the top of the closing cover, sealing plugs are fixedly connected to the tops of the four extension plates, and the sealing plugs are plugged into the inside of the air outlet holes, four primary air holes are opened through the top of the flat circular plate, and four resist strips are fixedly connected to the outer wall of the sliding sleeve, and the four resist strips are respectively arranged corresponding to the four primary air holes, and the width of the resist strips is one-fourth of the aperture of the primary air holes.

[0010] Optionally, the connecting mechanism also includes a slide groove, which is opened at a location on the top of the sealing partition near the water inlet connector. A contraction groove is opened on the side of the slide groove away from the water inlet connector, and a contraction tube is fixedly connected to the center of the top of the sealing partition.

[0011] Optionally, the filtering mechanism also includes a sealing frame, which is detachably mounted inside the mounting port and is arranged on the top of the first-stage filter bag. A flexible support sleeve is fixedly connected to the center of the top of the sealing frame. The flexible support sleeve is elastic. An insertion hole is provided at the bottom of the first-stage filter bag. A toggle rod is inserted into the insertion hole. A limiting ball is provided at the bottom of the toggle rod. The toggle rod movably passes through the sealing frame, and the end of the flexible support sleeve away from the sealing frame is fixedly connected to the outer wall of the toggle rod.

[0012] Optionally, a push ring is fixedly connected to one end of the outer wall of the toggle rod located inside the first-stage filter bag, and the push ring is against the inner wall of the first-stage filter bag. A spherical rod is detachably connected to the top of the toggle rod, and a toggle ball is provided at the end of the spherical rod away from the toggle rod. A clamping frame is detachably installed inside the mounting port, and the clamping frame is provided on the top of the sealing frame, and the top of the clamping frame is against the flat circular plate.

[0013] Optionally, the movable mechanism also includes a lifting ring, which is slidably connected to the outer walls of multiple sliding rods, and the lifting ring is slidably connected to the inside of the inner movable groove, three pushing floats are fixedly connected to the bottom of the lifting ring, a lifting rod is fixedly connected to the bottom of the lifting ring, a reset spring is fixedly connected to the bottom of the lifting rod, the lifting rod is slidably connected to the inside of the contraction tube, and the reset spring is fixedly connected to the bottom of the contraction tube.

[0014] Optionally, one end of the bottom of the lifting ring close to the center is rotatably connected to a support push bar, and the end of the support push bar away from the lifting ring is rotatably connected to an inverted L-shaped frame, the inverted L-shaped frame is slidably connected to the inside of the slide groove, and the inside of the contraction groove is slidably connected to a sliding rod, the sliding rod is fixedly connected to the inverted L-shaped frame, and the end of the inverted L-shaped frame away from the sliding rod is fixedly connected to a push block, and the push block is arranged inside the water inlet connector.

[0015] Optionally, four retractable tubes are fixedly connected to the top of the lifting rod, and a plurality of toggle plates are fixedly connected to the outer wall of each retractable tube. The outer walls of the toggle plates are smooth curved surfaces, and the outer walls of the toggle plates are against the toggle balls on the spherical rod. An extension slide rod is slidably connected to the inside of the retractable tube, and the extension slide rod slides through the top of the retractable tube. A sealing block is fixedly connected to the top of the retractable tube, and the sealing block is elastic. A mushroom-shaped sealing head is fixedly connected to the top of the sealing block, and the mushroom-shaped sealing head is plugged into the first-level air hole, and the mushroom-shaped sealing head is against the abutment strip. The bottom of the mushroom-shaped sealing head is provided with a rounded corner, and the resistance between the mushroom-shaped sealing head and the first-level air hole is less than the elastic force of the reset spring.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects: When the water inlet connector is connected to the water inlet pipe and water is poured into the main body above the sealing partition, the impact of water flowing into the main body from the water inlet connector will apply a thrust to the pushed block, causing the sliding rod to slide inside the slide groove and shrink inside the contraction groove, thereby connecting the two ends of the support push bar to the lifting ring and the inverted L-shaped frame for rotation. In the process of the pushed block moving toward the center of the main body, the lifting ring is pushed to rise inside the inner movable groove through the support push bar. At the same time, the lifting rod will rise inside the contraction tube and stretch the reset spring. During the rising process of the lifting ring, the multiple toggle pieces on the contraction tube will toggle the spherical rod, thereby toggling the toggle rod and the pushing ring to move. The flexible support sleeve provided at the connection between the toggle rod and the sealing frame can keep the toggle rod in a vertical state. When the toggle piece toggles the spherical rod to make the toggle rod move, the flexible support The support sleeve will undergo elastic deformation. When the spherical rod loses the toggling force applied to it, the flexible support sleeve will drive the toggle rod to reset, and the lifting and lowering of the lifting ring is controlled by the size of the water flow entering the main body through the water inlet connector. The spherical rod can be toggled when the lifting ring rises or falls, so that the toggle rod and the push ring can shake, so that the toggle rod and the push ring are supported inside the first-stage filter bag through the push ring, and the toggle rod passes through the insertion hole through the bottom ball to connect the toggle rod to the bottom of the first-stage filter bag. When the toggle force is applied to the spherical rod, the toggle rod and the push ring will drive the first-stage filter bag to shake together, so that the impurities adsorbed in the first-stage filter bag can be shaken intermittently, thereby preventing the impurities from continuing to adhere to the inner wall of the first-stage filter bag during long-term use of the filter bag, thereby reducing the phenomenon of serious filtration blockage in the first-stage filter bag and improving the filtration efficiency of the filter bag.

[0017] When the flow rate of water entering the main body through the water inlet connector tends to be stable, the water entering the main body may be stored in the area above the sealed baffle inside the main body because the filtration speed is lower than the water inlet speed. As the water storage capacity increases, the water surface will contact multiple push floats. By pushing the buoyancy of the floats and the water and the rising water level above the sealed baffle inside the main body, the lifting ring can be continuously pushed up, so that the toggle piece can continuously toggle the spherical rod. At the same time, the flow rate of water entering the main body and the rise and fall of the water level in the area above the sealed baffle inside the main body can greatly increase the lifting frequency of the lifting ring on the outer walls of the multiple sliding rods, thereby increasing the toggle frequency of the toggle piece on the multiple spherical rods, so that the toggle rod and the push ring can shake off the impurities adsorbed inside the first-stage filter bag multiple times, effectively preventing impurities from continuously covering the filtering surface of the first-stage filter bag, thereby further improving the efficiency of filtering the water sample above the sealed baffle inside the main body.

[0018] When there is too much water stored in the area above the sealing baffle inside the main body or the water flow rate through the water inlet connector is too large, the lifting ring will rise to the top, and the mushroom-shaped sealing head will be inserted into the first-level air hole, and the sealing block will be against the bottom of the flat circular plate, increasing the sealing effect of the first-level air hole. Therefore, the interior of the main body is sealed, so that the pressure in the area above the sealing baffle inside the main body can continue to increase, and the pressure is applied to the area below the sealing baffle inside the main body through the installation port, thereby increasing the speed at which the water sample passes through the first-level filter bag and the second-level filter cartridge, thereby increasing the filtration speed of the water sample, and at the same time avoiding the water level of the water sample in the area above the sealing baffle inside the main body from continuing to increase, causing the water sample to overflow to the outside through the first-level air hole and the air outlet hole, and as the pressure in the area above the sealing baffle inside the main body continues to increase, the force against the bottom of the flat circular plate will increase, further improving The sealing effect of the first-level air hole is improved, and when a greater upward thrust is applied to the sealing block, the mushroom-shaped sealing head will pass through the first-level air hole and resist the resisting strip, thereby pushing the sliding sleeve to slide a distance on the outer wall of the connecting pipe, and the extension plate will stretch the tension spring at the bottom to facilitate the resetting of the sliding sleeve, so that the sealing plug enters the air outlet, thereby sealing the air outlet and improving the sealing effect of the top of the main body. The above method can be used to control the flow rate of water entering the main body just after passing through the water inlet connector, and choose whether to seal the first-level air hole and the air outlet to maintain the sealing of the top of the main body. When the first-level air hole and the air outlet are not blocked, the water sample entering the area above the sealing partition inside the main body can be filtered through the first-level filter bag and the second-level filter cartridge by natural gravity, thereby reducing the phenomenon of swelling and deformation of the first-level filter bag and the second-level filter cartridge caused by high-pressure filtration, and reducing the breakage rate of the second-level filter cartridge and the first-level filter bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a partial cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the structure of the main body and the closing mechanism of the present invention; Figure 4 It is a schematic diagram of the main structure of the present invention; Figure 5 This is a schematic diagram of the filter mechanism structure of the present invention; Figure 6 This is a schematic diagram of the coordination structure between the filtering mechanism and the movable mechanism of the present invention; Figure 7It is a schematic diagram of the structure of the active mechanism of the present invention; Figure 8 This is a schematic structural diagram of the sealing mechanism of the present invention; Figure 9 for Figure 3 Enlarged view of point A in the middle; Figure 10 for Figure 5 Enlarged view of point B in the middle; Figure 11 for Figure 7 Enlarged view of point C in the middle; Figure 12 for Figure 8 Enlarged view of point D in the middle. Attached photos

[0021] 1. Main body; 101. Extension ring; 102. Inner movable groove; 103. Slide rod; 104. Water inlet connector; 105. Lower connecting ring; 106. Engaging ring; 107. Locking frame; 2. Closing mechanism; 201. Closing cover; 202. Flat circular plate; 203. Connecting pipe; 204. Sliding sleeve; 205. Extension plate; 206. Air vent; 207. Sealing plug; 208. Primary air vent; 209. Retaining bar; 3. Connecting mechanism; 301. Sealing partition; 302. Slide groove; 3021. Contraction groove; 303. Contraction cylinder; 304. Mounting port; 4. Filter Mechanism; 401, secondary filter cartridge; 402, primary filter bag; 403, sealing frame; 404, flexible support sleeve; 405, toggle rod; 406, pushing ring; 407, insertion hole; 408, spherical rod; 409, pressing frame; 5, movable mechanism; 501, lifting ring; 502, pushing float; 503, supporting push strip; 504, inverted L-shaped frame; 505, pushing block; 506, sliding rod; 507, lifting rod; 508, reset spring; 509, shrink tube; 510, toggle piece; 511, extension slide rod; 512, sealing block; 513, mushroom-shaped sealing head.

[0022] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0023] The following is a detailed description of a sample filtration device for water source environment detection provided by the present invention, in conjunction with the accompanying drawings and specific embodiments. It is also noted that, in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods for implementation of some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0024] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0025] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0026] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0027] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0028] Example 1, as Figures 1 to 10As shown, an embodiment of the present invention provides a sample filtering device for water source environment detection, including a main body 1 and a water inlet connector 104, the water inlet connector 104 is fixedly connected to the outer wall of the main body 1, an extension ring 101 is fixedly connected to the top of the main body 1, a plurality of bayonet holes are opened on the outer wall of the extension ring 101, an inner movable groove 102 is opened at one end of the inner wall of the main body 1 above the sealing partition 301, a plurality of slide bars 103 are fixedly connected to the top inner wall and the bottom inner wall of the inner movable groove 102, and the extension ring 101 is fixedly connected to the outer wall of the water source environment detection, and a plurality of slide bars 103 are fixedly connected to the top inner wall and the bottom inner wall of the water source environment detection, and the extension ring 101 is fixedly connected to the outer wall of the water source environment detection, Bolts are provided at the bottom. A lower connecting ring 105 is detachably connected to the bottom of the extension ring 101. A fitting ring 106 is fixedly connected to the interior of the lower connecting ring 105. A plurality of locking frames 107 are rotatably connected to the outer wall of the fitting ring 106. The plurality of locking frames 107 are respectively provided corresponding to the plurality of openings on the extension ring 101. The lower connecting ring 105 is installed at the bottom of the extension ring 101. The closure cover 201 is pressed against the top of the extension ring 101 through the fitting ring 106 and the locking frames 107. The connecting mechanism 3 is arranged inside the main body 1 and includes a sealing baffle 301. A plurality of mounting openings 304 are formed through the top of the sealing baffle 301. The connecting mechanism 3 also includes a chute 302. The chute 302 is provided at a location on the top of the sealing baffle 301 near the water inlet connector 104. A contraction groove 3021 is provided on a side of the chute 302 away from the water inlet connector 104. A contraction cylinder 303 is fixedly connected to the center of the top of the sealing baffle 301. The filtering mechanism 4 is arranged inside the connecting mechanism 3, and the filtering mechanism 4 includes a plurality of secondary filter cartridges 401, and the plurality of secondary filter cartridges 401 are detachably connected to the plurality of mounting ports 304, and the plurality of mounting ports 304 are located above the secondary filter cartridges 401 and are detachably connected to a primary filter bag 402. The filtering mechanism 4 also includes a sealing frame 403, which is detachably mounted inside the mounting port 304, and the sealing frame 403 is arranged on the top of the primary filter bag 402. A flexible support sleeve 404 is fixedly connected to the center of the top of the sealing frame 403. The flexible support sleeve 404 is elastic, and the toggle rod 405 can be kept vertical by the flexible support sleeve 404 arranged at the connection between the toggle rod 405 and the sealing frame 403. When the toggle piece 510 toggles the spherical rod 408 to make the toggle rod 405 active, the flexible support sleeve 404 will undergo elastic deformation. When the spherical rod 408 loses the toggle force applied to it, the flexible support sleeve 404 will drive the toggle rod 405 to reset. An insertion hole 407 is provided at the bottom of the primary filter bag 402, and a toggle rod 405 is inserted into the insertion hole 407. A limiting ball is provided at the bottom of the toggle rod 405. The toggle rod 405 movably passes through the sealing frame 403, and the end of the flexible support sleeve 404 away from the sealing frame 403 is fixedly connected to the outer wall of the toggle rod 405. The outer wall of the toggle rod 405 is located inside the primary filter bag 402 and is fixedly connected to a pushing ring 406. The pushing ring 406 is against the inner wall of the primary filter bag 402. The top of the movable rod 405 is detachably connected to a spherical rod 408, and a toggle ball is provided at one end of the spherical rod 408 away from the toggle rod 405. The size of the water flowing through the water inlet connector 104 and into the interior of the main body 1 is used to control the lifting and lowering of the lifting ring 501. Therefore, the spherical rod 408 can be toggled when the lifting ring 501 rises or falls, so that the toggle rod 405 and the pushing ring 406 can shake, so that the pushing ring 406 is supported inside the primary filter bag 402, and the toggle rod 405 passes through the insertion hole 407 through the bottom ball to connect the toggle rod 405 to the bottom of the primary filter bag 402. When a toggle force is applied to the spherical rod 408, the toggle rod 405 and the pushing ring 406 will drive the primary filter bag 402 to shake together, so that In order to intermittently shake off the impurities adsorbed in the primary filter bag 402, thereby preventing the impurities from continuously adhering to the inner wall of the primary filter bag 402 during long-term use of the filter bag, a pressing frame 409 is disassembled and installed inside the installation port 304, and the pressing frame 409 is arranged on the top of the sealing frame 403, and the top of the pressing frame 409 is against the flat circular plate 202. After the secondary filter cartridge 401, the primary filter bag 402, the sealing frame 403 and the pressing frame 409 are installed in the installation port 304 in sequence, after the closing cover 201 is covered on the top of the main body 1, the flat circular plate 202 will apply downward pressure to the pressing frame 409, thereby pressing each component installed inside the installation port 304, thereby improving the sealing between each component inside the installation port 304; The movable mechanism 5 is arranged on the top of the sealing partition 301. The movable mechanism 5 is used in conjunction with the connecting mechanism 3 to generate a shaking force on the first-level filter bag 402. The movable mechanism 5 also includes a lifting ring 501. The lifting ring 501 is slidably connected to the outer wall of multiple slide rods 103, and the lifting ring 501 is slidably connected to the inside of the inner movable groove 102. Three pushing floats 502 are fixedly connected to the bottom of the lifting ring 501. As the water storage volume increases, the water surface will contact the multiple pushing floats 502. By pushing the floats 502 and the buoyancy of the water, and the rising water level above the sealing partition 301 inside the main body 1, the lifting ring 501 can be continuously pushed to rise, so that the toggle piece 510 can be continuously toggled. The spherical rod 408 is moved, and at the same time, the lifting frequency of the lifting ring 501 on the outer wall of the multiple sliding rods 103 is greatly improved through the flow rate of water entering the main body 1 and the rise and fall of the water level in the area above the sealing partition 301 inside the main body 1, thereby increasing the frequency of the toggling of the multiple spherical rods 408 by the toggle piece 510. The bottom of the lifting ring 501 is fixedly connected to the lifting rod 507, and the bottom of the lifting rod 507 is fixedly connected to the return spring 508. The lifting rod 507 is slidably connected to the inside of the shrinking tube 303, and the return spring 508 is fixedly connected to the bottom of the shrinking tube 303. The end of the bottom of the lifting ring 501 near the center is rotatably connected to the support push strip 503, and the support push strip 503 is away from the lifting ring 501. One end is rotatably connected to an inverted L-shaped frame 504, which is slidably connected to the inside of the slide groove 302, and a sliding rod 506 is slidably connected to the inside of the contraction groove 3021. The sliding rod 506 is fixedly connected to the inverted L-shaped frame 504, and the end of the inverted L-shaped frame 504 away from the sliding rod 506 is fixedly connected to a pushed block 505. The pushed block 505 is arranged inside the water inlet connector 104, and four contraction tubes 509 are fixedly connected to the top of the lifting rod 507. The outer wall of each contraction tube 509 is fixedly connected to a plurality of toggling pieces 510. The outer wall of the toggling piece 510 is a smooth curved surface. The outer wall of the toggling piece 510 is against the toggling ball on the spherical rod 408, and water flows from the water inlet connector 104 into the main body 1 The impact of the upper part will apply a thrust to the pushed block 505, causing the sliding rod 506 to slide inside the slide groove 302 and shrink inside the shrink groove 3021, thereby rotating with the lifting ring 501 and the inverted L-shaped frame 504 at both ends of the support push bar 503. During the movement of the pushed block 505 toward the center of the main body 1, the lifting ring 501 is pushed up inside the inner movable groove 102 through the support push bar 503. At the same time, the lifting rod 507 will rise inside the shrink tube 303 and stretch the return spring 508. During the rising process of the lifting ring 501, the multiple toggling pieces 510 on the shrink tube 509 will toggle the spherical rod 408, thereby toggling the toggle rod 405 and the pushing ring 406 to move; The shrink tube 509 is internally slidably connected with an extension slide rod 511, which slides through the top of the shrink tube 509. The top of the shrink tube 509 is fixedly connected with a sealing block 512. The sealing block 512 is elastic. The top of the sealing block 512 is fixedly connected with a mushroom-shaped sealing head 513. The mushroom-shaped sealing head 513 is plugged into the primary air hole 208, and the mushroom-shaped sealing head 513 is against the push bar 209. The bottom of the mushroom-shaped sealing head 513 is provided with a rounded corner. The resistance between the mushroom-shaped sealing head 513 and the primary air hole 208 is less than the elastic force of the reset spring 508. When the main body 1 is located in the sealing space When the water flow stored in the area above the plate 301 is too much or the water flow rate through the water inlet connector 104 is too high, the lifting ring 501 will rise to the top, and the mushroom-shaped sealing head 513 will be inserted into the first-level air hole 208, and the sealing block 512 will be pressed against the bottom of the flat circular plate 202, thereby increasing the sealing effect of the first-level air hole 208, thereby sealing the interior of the main body 1. As the pressure in the area above the sealing partition 301 in the main body 1 continues to increase, the force of the sealing block 512 against the bottom of the flat circular plate 202 will increase, further improving the sealing effect of the first-level air hole 208. The working principle of the technical solution provided by the present invention is as follows: When the water inlet connector 104 is connected to the water inlet pipe, when water is poured into the main body 1 above the sealing partition 301, the impact of water flowing into the main body 1 from the water inlet connector 104 will exert a thrust on the pushed block 505, causing the sliding rod 506 to slide inside the slide groove 302 and shrink inside the shrink groove 3021, thereby supporting the push bar 503 through its two ends respectively connected to the lifting ring 501 and the inverted L-shaped frame 504. In the process of the pushed block 505 moving toward the center of the main body 1, the push bar 506 is pushed away. 3 pushes the lifting ring 501 to rise inside the inner movable groove 102, and at the same time, the lifting rod 507 will rise inside the shrink tube 303 and stretch the return spring 508. During the rising process of the lifting ring 501, the multiple toggle pieces 510 on the shrink tube 509 will toggle the spherical rod 408, thereby toggling the toggle rod 405 and the pushing ring 406 to move. The flexible support sleeve 404 provided at the connection between the toggle rod 405 and the sealing frame 403 can keep the toggle rod 405 in a vertical state. When the ball rod 408 is toggled by 510 to make the toggle rod 405 active, the flexible support sleeve 404 will be elastically deformed. When the ball rod 408 loses the toggle force applied to it, the flexible support sleeve 404 will drive the toggle rod 405 to reset. The lifting and lowering of the lifting ring 501 can be controlled by the amount of water flowing into the main body 1 through the water inlet connector 104. Therefore, the ball rod 408 can be toggled when the lifting ring 501 rises or falls, so that the toggle rod 405 and the push ring 406 can shake, thereby The pushing ring 406 is supported inside the primary filter bag 402, and the toggle rod 405 passes through the insertion hole 407 through the ball at the bottom to connect the toggle rod 405 with the bottom of the primary filter bag 402. When a toggle force is applied to the ball rod 408, the toggle rod 405 and the pushing ring 406 will drive the primary filter bag 402 to shake together, thereby intermittently shaking off impurities adsorbed in the primary filter bag 402, thereby preventing impurities from continuously adhering to the inner wall of the primary filter bag 402 during long-term use of the filter bag. When the flow rate of water entering the main body 1 through the water inlet connector 104 tends to be stable, the water entering the main body 1 may be stored in the area above the sealing baffle 301 inside the main body 1 because the filtration speed is lower than the water inlet speed. As the water storage volume increases, the water surface will contact the multiple push floats 502. By pushing the buoyancy of the floats 502 and the water and the rising water level above the sealing baffle 301 inside the main body 1, the lifting ring 501 can be continuously pushed up, so that the toggle piece 510 can continuously toggle the spherical rod 408. At the same time, the flow rate of water entering the main body 1 and the rise and fall of the water level in the area above the sealing baffle 301 inside the main body 1 can greatly increase the lifting frequency of the lifting ring 501 on the outer walls of the multiple sliding rods 103, thereby increasing the toggle frequency of the toggle piece 510 on the multiple spherical rods 408, so that the toggle rod 405 and the pushing ring 406 can repeatedly shake off the impurities adsorbed on the first-level filter bag 402, effectively preventing the impurities from continuously covering the filtering surface of the first-level filter bag 402.

[0029] Example 2, as Figures 2 to 6As shown, a closing mechanism 2 is provided on the top of the extension ring 101, and the closing mechanism 2 includes a closing cover 201, which is detachably connected to the top of the extension ring 101, and a plurality of openings are provided on the outer wall of the closing cover 201, and the plurality of openings correspond to the bayonet holes on the extension ring 101, a flat circular plate 202 is fixedly connected to the bottom of the closing cover 201, and a connecting pipe 203 is fixedly connected to the center between the top of the flat circular plate 202 and the top of the closing cover 201, and the connecting pipe 203 passes through the bottom of the flat circular plate 202 and the top of the main body 1, and the connecting pipe 20 3. A pressure gauge and a pressure relief valve are installed on the top. A sliding sleeve 204 is slidably connected to the outer wall of the connecting pipe 203. Four extension plates 205 are fixedly connected to the outer wall of the sliding sleeve 204. Tension springs are fixedly connected between two extension plates 205 and the flat circular plate 202. Four air outlet holes 206 are opened through the top of the closing cover 201. A sealing plug 207 is fixedly connected to the top of the four extension plates 205. The sealing plug 207 is plugged into the inside of the air outlet hole 206. Four primary air holes 208 are opened through the top of the flat circular plate 202. The sliding sleeve 205 is fixedly connected to the outer wall of the connecting pipe 203. 04 outer wall is fixedly connected with four push bars 209, which are respectively set corresponding to the four primary air holes 208, and the width of the push bars 209 is one-fourth of the aperture of the primary air hole 208. When a greater upward thrust is applied to the sealing block 512, the mushroom-shaped sealing head 513 will pass through the primary air hole 208 and resist the push bars 209, thereby pushing the sliding sleeve 204 to slide a distance on the outer wall of the connecting pipe 203. The extension plate 205 will stretch the tension spring at the bottom to facilitate the reset of the sliding sleeve 204, so that the sealing plug 207 enters. The inside of the air outlet 206 is blocked, thereby blocking the air outlet 206 and improving the sealing effect of the top of the main body 1. The above embodiment can control the flow rate of water just after passing through the water inlet connector 104 into the main body 1, and choose whether to block the first-level air hole 208 and the air outlet 206 to maintain the sealing of the top of the main body 1. When the first-level air hole 208 and the air outlet 206 are not blocked, the water sample entering the area above the sealing partition 301 inside the main body 1 can be filtered through the first-level filter bag 402 and the second-level filter cartridge 401 by natural gravity.

[0030] The working principle of the technical solution provided by the present invention is as follows: When the water flow stored in the area above the sealing baffle 301 inside the main body 1 is too much or the water flow rate through the water inlet connector 104 is too large, the lifting ring 501 will rise to the top, and the mushroom-shaped sealing head 513 will be inserted into the first-level air hole 208, and the sealing block 512 will be against the bottom of the flat circular plate 202, thereby increasing the sealing effect of the first-level air hole 208, thereby sealing the inside of the main body 1, so that the pressure in the area above the sealing baffle 301 inside the main body 1 can continue to increase, and the pressure is applied to the area below the sealing baffle 301 inside the main body 1 through the installation port 304, thereby increasing the speed of the water sample passing through the first-level filter bag 402 and the second-level filter cartridge 401, thereby increasing the filtration speed of the water sample, and at the same time preventing the water level of the water sample in the area above the sealing baffle 301 inside the main body 1 from continuing to increase, causing the water sample to overflow to the outside through the first-level air hole 208 and the air outlet 206; As the pressure in the area above the sealing partition 301 inside the main body 1 continues to increase, the force of the sealing block 512 against the bottom of the flat circular plate 202 will increase, further improving the sealing effect of the primary air hole 208. When a greater upward thrust is applied to the sealing block 512, the mushroom-shaped sealing head 513 will pass through the primary air hole 208 and abut against the resistance bar 209, thereby pushing the sliding sleeve 204 to slide a distance on the outer wall of the connecting pipe 203. The extension plate 205 will stretch the tension spring at the bottom to facilitate the reset of the sliding sleeve 204, so that the sealing plug 208 can be opened. 07 enters the air outlet 206, thereby blocking the air outlet 206 and improving the sealing effect of the top of the main body 1. The above embodiment can control the flow rate of water just after passing through the water inlet connector 104 into the main body 1, and choose whether to block the first-level air hole 208 and the air outlet 206 to maintain the sealing of the top of the main body 1. When the first-level air hole 208 and the air outlet 206 are not blocked, the water sample entering the area above the sealing partition 301 inside the main body 1 can be filtered through the first-level filter bag 402 and the second-level filter cartridge 401 by natural gravity.

[0031] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A sample filtering device for water source environment detection, comprising a main body (1) and a water inlet connector (104), wherein the water inlet connector (104) is fixedly connected to the outer wall of the main body (1), characterized in that: Also includes: A connecting mechanism (3), the connecting mechanism (3) being arranged inside the main body (1), the connecting mechanism (3) comprising a sealing baffle (301), a top of the sealing baffle (301) being provided with a plurality of mounting openings (304); A filtering mechanism (4), the filtering mechanism (4) being arranged inside the connecting mechanism (3), the filtering mechanism (4) comprising a plurality of secondary filter cartridges (401), the plurality of secondary filter cartridges (401) being detachably connected to the interior of a plurality of mounting openings (304), and a primary filter bag (402) being detachably connected to the interior of the plurality of mounting openings (304) located above the secondary filter cartridges (401); A movable mechanism (5) is provided on the top of the sealing partition (301), and the movable mechanism (5) is used in conjunction with the connecting mechanism (3) to generate a shaking force on the first-stage filter bag (402).

2. A sample filtering device for water source environment detection according to claim 1, characterized in that: The top of the main body (1) is fixedly connected to an extension ring (101), and the outer wall of the extension ring (101) is provided with a plurality of bayonet holes. The inner wall of the main body (1) is provided with an inner movable groove (102) at one end above the sealing partition (301), and the top inner wall and the bottom inner wall of the inner movable groove (102) are fixedly connected to a plurality of sliding rods (103). The bottom of the extension ring (101) is provided with bolts, and the bottom of the extension ring (101) is detachably connected to a lower connecting ring (105), and the lower connecting ring (105) is fixedly connected to a fitting ring (106) inside. The outer wall of the fitting ring (106) is rotatably connected to a plurality of locking frames (107), and the plurality of locking frames (107) are respectively provided corresponding to the plurality of openings on the extension ring (101).

3. A sample filtering device for water source environment detection according to claim 2, characterized in that: A closing mechanism (2) is provided at the top of the extension ring (101), and the closing mechanism (2) includes a closing cover (201). The closing cover (201) is detachably connected to the top of the extension ring (101), and the outer wall of the closing cover (201) is provided with a plurality of openings, and the plurality of openings correspond to the bayonet on the extension ring (101). A flat circular plate (202) is fixedly connected to the bottom of the closing cover (201), and a connecting pipe (203) is fixedly connected at the center between the top of the flat circular plate (202) and the top of the closing cover (201). The connecting pipe (203) passes through the bottom of the flat circular plate (202) and the top of the main body (1), and a pressure gauge and a pressure relief valve are installed on the top of the connecting pipe (203).

4. A sample filtering device for water source environment detection according to claim 3, characterized in that: The outer wall of the connecting tube (203) is slidably connected to a sliding sleeve (204), and the outer wall of the sliding sleeve (204) is fixedly connected to four extension plates (205), wherein two of the extension plates (205) are fixedly connected to the flat circular plate (202) with a tension spring, and the top of the closing cover (201) is provided with four air outlet holes (206), and the tops of the four extension plates (205) are fixedly connected to sealing plugs (207), and the sealing plugs (207) are plugged into the inside of the air outlet holes (206), and the top of the flat circular plate (202) is provided with four primary air holes (208), and the outer wall of the sliding sleeve (204) is fixedly connected to four support strips (209), and the four support strips (209) are respectively arranged corresponding to the four primary air holes (208), and the width of the support strips (209) is one-fourth of the aperture of the primary air hole (208).

5. The sample filtering device for water source environment detection according to claim 4, characterized in that: The connecting mechanism (3) further comprises a chute (302), the chute (302) being provided at a location on the top of the sealing baffle (301) near the water inlet connector (104), a contraction groove (3021) being provided inside the chute (302) on a side away from the water inlet connector (104), and a contraction cylinder (303) being fixedly connected to the center of the top of the sealing baffle (301).

6. A sample filtering device for water source environment detection according to claim 5, characterized in that: The filtering mechanism (4) further comprises a sealing frame (403), the sealing frame (403) being detachably mounted inside the mounting opening (304), and the sealing frame (403) being arranged on the top of the primary filter bag (402), a flexible support sleeve (404) being fixedly connected at the center of the top of the sealing frame (403), the flexible support sleeve (404) being elastic, an insertion hole (407) being provided at the bottom of the primary filter bag (402), a toggle rod (405) being inserted into the insertion hole (407), a limiting ball being provided at the bottom of the toggle rod (405), the toggle rod (405) being movably penetrated through the sealing frame (403), and an end of the flexible support sleeve (404) away from the sealing frame (403) being fixedly connected to the outer wall of the toggle rod (405).

7. A sample filtering device for water source environment detection according to claim 6, characterized in that: The outer wall of the toggle rod (405) is fixedly connected to a push ring (406) at one end inside the first-stage filter bag (402), and the push ring (406) is in contact with the inner wall of the first-stage filter bag (402). The top of the toggle rod (405) is detachably connected to a spherical rod (408), and the end of the spherical rod (408) away from the toggle rod (405) is provided with a toggle ball. A pressing frame (409) is detachably installed inside the mounting port (304), and the pressing frame (409) is provided on the top of the sealing frame (403). The top of the pressing frame (409) is in contact with the flat circular plate (202).

8. The sample filtering device for water source environment detection according to claim 7, characterized in that: The movable mechanism (5) further comprises a lifting ring (501), wherein the lifting ring (501) is slidably connected to the outer walls of the plurality of slide rods (103), and the lifting ring (501) is slidably connected to the interior of the inner movable groove (102), three push floats (502) are fixedly connected to the bottom of the lifting ring (501), a lifting rod (507) is fixedly connected to the bottom of the lifting ring (501), a return spring (508) is fixedly connected to the bottom of the lifting rod (507), the lifting rod (507) is slidably connected to the interior of the contraction tube (303), and the return spring (508) is fixedly connected to the bottom of the contraction tube (303).

9. The sample filtering device for water source environment detection according to claim 8, characterized in that: One end of the bottom of the lifting ring (501) close to the center is rotatably connected to a support push bar (503), and one end of the support push bar (503) away from the lifting ring (501) is rotatably connected to an inverted L-shaped frame (504), the inverted L-shaped frame (504) is slidably connected to the inside of the sliding groove (302), and the inside of the shrinkage groove (3021) is slidably connected to a sliding rod (506), and the sliding rod (506) is fixedly connected to the inverted L-shaped frame (504), and one end of the inverted L-shaped frame (504) away from the sliding rod (506) is fixedly connected to a pushed block (505), and the pushed block (505) is arranged inside the water inlet connector (104).

10. The sample filtering device for water source environment detection according to claim 9, characterized in that: The top of the lifting rod (507) is fixedly connected to four shrink tubes (509), and the outer wall of each shrink tube (509) is fixedly connected to a plurality of toggle plates (510), and the outer wall of each toggle plate (510) is a smooth curved surface. The outer wall of the toggle plate (510) is against the toggle ball on the spherical rod (408), and the shrink tube (509) is slidably connected to an extension slide rod (511), and the extension slide rod (511) slides through the top of the shrink tube (509). The top of the shrink tube (509) A sealing block (512) is fixedly connected, and the sealing block (512) is elastic. A mushroom-shaped sealing head (513) is fixedly connected to the top of the sealing block (512), and the mushroom-shaped sealing head (513) is plugged into the primary air hole (208), and the mushroom-shaped sealing head (513) is against the abutment bar (209). The bottom of the mushroom-shaped sealing head (513) is provided with a rounded corner, and the resistance between the mushroom-shaped sealing head (513) and the primary air hole (208) is less than the elastic force of the return spring (508).

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