Outdoor portable water quality monitoring device

Abstract

The application discloses an outdoor portable water quality monitoring device and particularly relates to the technical field of water quality detection, which comprises a handheld part and a detection part, the handheld part and the detection part are connected through a wire, one end of the detection part away from the wire is provided with a probe, and the application further comprises a protection assembly and a scraping assembly. The protection assembly is arranged, on one hand, when the detection part is put into water, the gas sprayed by the air jet ring enters the protection cover, and then is sprayed to the outside of the protection cover through the filter holes, so that the impurities on the surface of the water body are prevented from approaching the detection part, and the filter holes are prevented from being blocked by the impurities on the water surface, and on the other hand, when the filter holes are blocked by the impurities, the telescopic rod is driven by air pressure to move in the telescopic groove towards the protection cover, so that the air jet ring moves in the protection cover and sprays gas to the multiple filter holes, each filter hole can be independently cleaned by air jet, the cleaning effect is further improved, the interference of the impurities on the monitoring is effectively reduced, and the monitoring precision is further improved.

Description

Technical Field

[0001] This invention relates to the field of water quality testing technology, and more specifically, to an outdoor portable water quality monitoring device. Background Technology

[0002] Outdoor portable water quality monitoring instruments are portable devices used for rapid on-site testing of water quality parameters, suitable for fields such as wastewater treatment, environmental protection, industrial water supply and drainage, and aquaculture. Their core features include support for mobile outdoor operations, real-time data transmission, and intelligent operation. Existing outdoor portable water quality monitoring equipment typically consists of a handle held by the operator and a probe for immersion in water, connected by a power cord.

[0003] Chinese patent application number 202410221352.3 discloses a portable intelligent water quality testing device, comprising: a main body of the detector and a probe connected to the main body of the detector via a wire; a hinge forming a first hinge end hinged to the main body of the detector, a second hinge end hinged to and detachably connected to the probe, and a retractable connecting part for connecting the first hinge end and the second hinge end; a protective cover; and two abutment members; the probe can be rotated relative to the main body of the detector to a first position and a second position via the hinge members. This application features a protective cover that can partially or completely cover the probe by retracting it, thus protecting the probe from corrosion in harsh environments when it is not in use. The protective cover does not need to be disassembled, making it easy to carry.

[0004] While the invention can protect the probe with a protective cover when the probe is not in use, it cannot protect the probe during water quality testing. The probe will be directly exposed to impurities, which can easily lead to probe contamination or physical damage. This reduces the contact area between the probe and the water sample, affecting monitoring accuracy and equipment lifespan.

[0005] This invention provides an outdoor portable water quality monitoring device, which aims to solve the problem that when existing outdoor portable water quality monitoring devices are used for water quality monitoring, the probe is directly exposed to impurities, which can easily lead to probe contamination or physical damage, resulting in a reduced contact area between the probe and the water sample, affecting the detection accuracy and the lifespan of the device. Summary of the Invention

[0006] The purpose of this invention is to provide an outdoor portable water quality monitoring device to solve the problem mentioned in the background art that when existing outdoor portable water quality monitoring devices are used for water quality monitoring, the probe is directly exposed to impurities, which can easily lead to probe contamination or physical damage, resulting in a reduction in the contact area between the probe and the water sample, affecting the detection accuracy and the lifespan of the device.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an outdoor portable water quality monitoring device, comprising a handheld part and a detection part, wherein the handheld part and the detection part are connected by a wire, and a probe is provided at the end of the detection part away from the wire, and further comprising: The protective assembly includes a protective cover fitted around the outer periphery of the probe, the protective cover having a filter hole for liquid to pass through, and the protective assembly being used to spray air into and out of the protective cover to block impurities and clean the filter hole; A scraping assembly, comprising a scraper sleeved on the outside of the protective cover, the scraping assembly being used in conjunction with the protective assembly to drive the scraper to move along the protective cover in order to scrape away debris attached to the outside of the protective cover.

[0008] Preferably, the protective assembly further includes a first mounting block fixedly connected to the outside of the detection unit, and the protective cover is fixedly connected to the first mounting block; The protective assembly also includes an air jet ring disposed within the protective cover, the air jet ring having air jet holes.

[0009] Preferably, the first mounting block has a telescopic groove at one end near the protective cover, and a hollow telescopic rod is slidably connected inside the telescopic groove. One end of the telescopic rod extending into the protective cover is fixedly connected to the air jet ring, and the air jet hole communicates with the inside of the telescopic rod.

[0010] Preferably, a miniature air pump is provided inside the handheld part, and a connecting groove is provided inside the first mounting block. The miniature air pump is connected to the inside of the connecting groove through an air pipe provided in the wire, and the connecting groove is connected to the inside of the telescopic groove.

[0011] Preferably, pressure sensors are provided on both the inner and outer sides of the protective cover, and a controller is provided inside the handheld part. The pressure sensors and the micro air pump are both electrically connected to the controller.

[0012] Preferably, the scraping assembly further includes a second mounting block fixedly connected to the outside of the first mounting block, and a guide rod slidably connected to the second mounting block, the end of the guide rod near the protective cover being fixedly connected to the scraper.

[0013] Preferably, the scraping assembly further includes a drive rod fixedly connected to the jet ring, an electromagnet fixedly connected to one end of the drive rod away from the jet ring, a magnetic component fixedly connected to one end of the guide rod away from the scraper, the electromagnet being electrically connected to the controller, and generating a magnetic force that attracts the magnetic component when the electromagnet is energized.

[0014] Preferably, the second mounting block has a first guide groove at one end near the protective cover, and the guide rod is slidably connected to the first guide groove; The first mounting block has a second guide groove at one end near the protective cover, which is the same number as the first guide groove and in a corresponding position. The drive rod is slidably connected in the second guide groove.

[0015] Preferably, the first mounting block has a first mounting groove at one end near the protective cover, and a first elastic member is fitted inside the first mounting groove. One end of the first elastic member is connected to the air jet ring, and the other end is connected to the end of the first mounting groove away from the protective cover.

[0016] Preferably, the second mounting block has a second mounting groove at one end near the protective cover, and a second elastic member is fitted inside the second mounting groove. One end of the second elastic member is connected to the scraper, and the other end is connected to the end of the second mounting groove away from the protective cover.

[0017] The technical effects and advantages of this invention are as follows: 1. The present invention, through the setting of protective components, enables, on the one hand, that when the detection unit is placed in water, the gas ejected by the jet ring enters the protective cover and is then sprayed outward through multiple sets of filter holes, pushing away impurities floating on the water surface and preventing impurities on the water surface from approaching the detection unit. This allows the detection unit to be quickly placed in water for water quality testing and prevents multiple sets of filter holes from being blocked by impurities on the water surface. On the other hand, when the filter holes are blocked by impurities, air pressure pushes multiple telescopic rods to move towards the protective cover in the corresponding telescopic grooves. As the jet ring moves within the protective cover, it sprays gas onto multiple sets of filter holes, enabling individual jet cleaning of each filter hole, further improving the cleaning effect, effectively reducing the interference of impurities on monitoring, and further improving monitoring accuracy. 2. By setting up the scraping component, when the pressure difference between the inside and outside of the self-cleaning protective cover cannot be restored after one cycle, the controller controls the electromagnet to start, so that the air jet ring drives the scraper and blade to move on the outside of the protective cover during the movement of the protective cover. During the movement, the debris attached to and wrapped around the outside of the protective cover 41 is scraped off, which can prevent the entanglement of algae and other debris, so that the water inside the protective cover can circulate normally, and further improve the monitoring accuracy. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the detection unit structure of the present invention.

[0020] Figure 3 This is a cross-sectional view of the protective component structure of the present invention.

[0021] Figure 4 This is a cross-sectional view of the scraping component structure of the present invention.

[0022] Figure 5 This is a schematic diagram of the structure of the first mounting block and the second mounting block of the present invention.

[0023] Figure 6 This is a schematic diagram of the bottom structure of the first mounting block and the second mounting block of the present invention.

[0024] Figure 7 This is a schematic diagram of the jet ring structure of the present invention.

[0025] Figure 8 This is a schematic diagram of the scraper part of the present invention.

[0026] The attached figures are labeled as follows: 1. Handheld part; 11. Wire; 2. Detection part; 3. Probe; 4. Protective component; 41. Protective cover; 42. Filter hole; 43. First mounting block; 44. Telescopic groove; 45. Telescopic rod; 46. Air jet ring; 47. Air jet hole; 48. Connecting groove; 49. Pressure sensor; 410. First mounting groove; 411. First elastic element; 5. Scraping component; 51. Second mounting block; 52. First guide groove; 53. Guide rod; 54. Scraper; 55. Blade; 56. Second guide groove; 57. Drive rod; 58. Electromagnet; 59. Magnetic element; 510. Second mounting groove; 511. Second elastic element. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] When existing outdoor portable water quality monitoring equipment is used for water quality monitoring, the probe cannot be protected. The probe is directly exposed to impurities, which can easily lead to probe contamination or physical damage. This reduces the contact area between the probe and the water sample, affecting the detection accuracy and the lifespan of the equipment.

[0029] Example 1 refer to Figures 1 to 8 An outdoor portable water quality monitoring device according to an embodiment of the present invention includes a handheld part 1 and a detection part 2. The handheld part 1 and the detection part 2 are connected by a wire 11, and a probe 3 is provided at the end of the detection part 2 away from the wire 11.

[0030] refer to Figures 1 to 3It also includes a protective component 4, which includes a protective cover 41 fitted on the outer periphery of the probe 3. The outer circumferential wall of the protective cover 41 has multiple sets of filter holes 42 evenly distributed to prevent impurities from covering the probe 3.

[0031] refer to Figure 2 , Figure 3 , Figure 6 and Figure 7 The protective component 4 also includes a first mounting block 43 fixedly connected to the outside of the detection unit 2. The protective cover 41 is fixedly connected to the first mounting block 43. The first mounting block 43 has multiple telescopic grooves 44 at one end near the protective cover 41. The interior of each of the multiple telescopic grooves 44 is sealed and slidably connected to a hollow telescopic rod 45. The end of each of the multiple telescopic rods 45 extending into the interior of the protective cover 41 is fixedly connected to an air jet ring 46 sleeved between the protective cover 41 and the probe 3.

[0032] refer to Figure 7 Multiple air jet holes 47 are evenly provided on the outer circumference of the air jet ring 46. The multiple air jet holes 47 are connected to the interior of multiple telescopic rods 45. The number of multiple air jet holes 47 is the same as the number of filter holes 42 in each group and their positions are corresponding. The multiple air jet holes 47 are all throttling holes. The interior of the first mounting block 43 is provided with a connecting groove 48 that connects multiple telescopic grooves 44.

[0033] refer to Figures 1 to 4 Pressure sensors 49 are provided on both the inner and outer sides of the protective cover 41. A miniature air pump is provided inside the handheld part 1. The miniature air pump is connected to the inside of the connecting groove 48 through an air tube provided in the wire 11. A controller is provided inside the handheld part 1. Each pressure sensor 49 and the miniature air pump are electrically connected to the controller.

[0034] refer to Figure 6 and Figure 7 The first mounting block 43 has multiple first mounting slots 410 at one end near the protective cover 41. Each of the multiple first mounting blocks 43 has a first elastic element 411 inside. One end of each first elastic element 411 is connected to the jet ring 46, and the other end is connected to the end of the corresponding first mounting slot 410 away from the protective cover 41.

[0035] In actual use, the operator holds the handheld part 1 and then puts the detection part 2 into the water to test the water quality. At this time, the protective cover 41 can protect the probe 3 and prevent the probe 3 from being damaged by contact with impurities. When the detection unit 2 is placed in the water, the controller activates the miniature air pump in the handheld unit 1, causing the gas to enter the connecting groove 48 through the air tube in the wire 11, then enter the air jet ring 46 through multiple telescopic grooves 44 and multiple telescopic rods 45, and finally be ejected through multiple air jet holes 47. The gas ejected through the air jet holes 47 enters the protective cover 41, and then is sprayed outwards from the protective cover 41 through multiple sets of filter holes 42, blocking impurities on the water surface from approaching the detection unit 2, allowing the detection unit 2 to be quickly placed in the water for water quality testing, and preventing the filter holes 42 from being blocked by impurities on the water surface.

[0036] When the detection unit 2 is immersed in water for a long time for water quality testing, the two pressure sensors 49 on the protective cover 41 will detect the pressure difference inside and outside the protective cover 41. When the filter hole 42 is blocked by impurities, the pressure difference inside and outside the protective cover 41 will change. When the pressure difference inside and outside the protective cover 41 reaches the set threshold, the controller controls the micro air pump in the handheld part 1 to start, so that the gas enters the connecting groove 48 through the air tube in the wire 11, and then enters the air jet ring 46 through multiple telescopic grooves 44 and multiple telescopic rods 45. Finally, it is ejected through multiple air jet holes 47. The gas ejected through the air jet holes 47 will enter the protective cover 41, and then be sprayed to the outside of the protective cover 41 through multiple sets of filter holes 42, blowing away the impurities blocked on the filter holes 42, thereby self-cleaning the protective cover 41, preventing the filter holes 42 from being blocked, ensuring the normal flow of water around the probe 3, and improving the monitoring accuracy. At the same time, the equipment can record the occurrence time and frequency of each self-cleaning, which can indirectly reflect the turbidity or total amount of suspended solids in the water.

[0037] Since the multiple jet holes 47 are all throttling holes, they cannot completely release the gas supplied by the micro air pump. This causes the air pressure in the connecting groove 48 and the multiple telescopic grooves 44 to gradually increase. The increased air pressure will push the multiple telescopic rods 45 to move towards the protective cover 41 in the corresponding telescopic grooves 44. This causes the jet ring 46 to stretch the multiple first elastic elements 411 to move within the protective cover 41. During the movement of the jet ring 46 within the protective cover 41, the gas will be sprayed through the multiple jet holes 47 towards the corresponding filter holes 42. This allows for individual jet cleaning of each filter hole 42, further improving the cleaning effect, effectively reducing the interference of impurities on monitoring, and further improving the monitoring accuracy.

[0038] When the jet ring 46 moves to its limit position inside the protective cover 41, the controller controls the micro air pump to stop working. The jet ring 46 will gradually return to its initial position under the action of multiple first elastic elements 411, and the remaining gas in the connecting groove 48 and multiple telescopic grooves 44 will be ejected from multiple jet holes 47 to clean the filter hole 42 again.

[0039] It should be noted that when the jet ring 46 is jetting, it will generate a small local water flow disturbance outside the protective cover 41. This "micro-stirring" effect can break the static water boundary layer on the surface of the probe 3, so that the probe 3 can come into contact with the fully mixed water, rather than the stagnant water on the surface of the probe 3 that has undergone chemical changes.

[0040] In summary, by setting up the protective component 4, on the one hand, when the detection unit 2 is placed in water, the gas ejected by the jet ring 46 enters the protective cover 41 and is then sprayed outwards through multiple sets of filter holes 42, pushing away impurities floating on the water surface and preventing impurities on the water surface from approaching the detection unit 2. This allows the detection unit 2 to be quickly placed in water for water quality testing and prevents the multiple sets of filter holes 42 from being blocked by impurities on the water surface. On the other hand, when the filter holes 42 are blocked by impurities, air pressure pushes multiple telescopic rods 45 to move towards the protective cover 41 within the corresponding telescopic grooves 44. As the jet ring 46 moves within the protective cover 41, it sprays gas towards the multiple sets of filter holes 42, enabling individual jet cleaning of each filter hole 42, further improving the cleaning effect, effectively reducing the interference of impurities on monitoring, and further improving monitoring accuracy.

[0041] Example 2 In actual use, when the protective cover 41 is entangled with algae and other debris, blowing air alone cannot completely remove such entangled debris, causing the filter holes 42 to become blocked. This prevents the water inside the protective cover 41 from flowing normally, affecting the monitoring accuracy. Therefore, this embodiment improves the device described in the above embodiment.

[0042] refer to Figures 1 to 8 It also includes a scraping component 5, which includes a second mounting block 51 fixedly connected to the outside of the first mounting block 43. The second mounting block 51 has a plurality of first guide grooves 52 at one end near the protective cover 41. Guide rods 53 are slidably connected inside the plurality of first guide grooves 52. A scraper 54 sleeved on the outside of the protective cover 41 is fixedly connected to one end of the plurality of guide rods 53 near the protective cover 41. A plurality of blades 55 are fixedly connected to the side of the scraper 54 away from the plurality of guide rods 53.

[0043] refer to Figure 4 and Figure 6 The first mounting block 43 has a second guide groove 56 at one end near the protective cover 41, which is the same number and position as the first guide groove 52. Each second guide groove 56 has a drive rod 57 that is fixedly connected to the jet ring 46. Each drive rod 57 has an electromagnet 58 fixedly connected at one end away from the jet ring 46. Each guide rod 53 has a magnetic component 59 fixedly connected at one end away from the scraper 54. When the electromagnet 58 is energized, it will generate a magnetic force that attracts the magnetic component 59. Each electromagnet 58 is electrically connected to the controller.

[0044] refer to Figure 6 and Figure 8 The second mounting block 51 has multiple second mounting slots 510 at one end near the protective cover 41. Each of the multiple second mounting slots 510 is fitted with a second elastic element 511. One end of each second elastic element 511 is connected to the scraper 54, and the other end is connected to the end of the corresponding second mounting slot 510 away from the protective cover 41.

[0045] In actual use, when the pressure difference between the inside and outside of the protective cover 41 reaches the set threshold and completes one self-cleaning cycle, if the pressure difference between the inside and outside of the protective cover 41 cannot be restored within the set time, the controller controls the electromagnet 58 to start, so that the electromagnet 58 generates a magnetic force that attracts the opposite magnetic component 59. At the same time, the micro air pump is started again for self-cleaning, so that the air jet ring 46 drives multiple drive rods 57 to move in the corresponding second guide groove 56 during the movement of the protective cover 41. During the movement of the multiple drive rods 57, multiple guide rods 53 will move in the corresponding first guide groove 52 through the magnetic coupling of multiple electromagnets 58 and multiple magnetic components 59. This allows the scraper 54 to stretch multiple second elastic components 511 to drive the blade 55 to move on the outside of the protective cover 41. During the movement of the blade 55, it will cut off the debris wrapped around the outside of the protective cover 41. During the movement of the scraper 54, it will scrape off the debris attached to the outside of the protective cover 41, which can prevent the entanglement of algae and other debris, so that the water inside the protective cover 41 can circulate normally, further improving the monitoring accuracy.

[0046] After self-cleaning is completed, the controller stops the magnetic component 59 from working, and the scraper 54 and multiple guide rods 53 gradually return to their initial positions under the action of multiple second elastic components 511.

[0047] In summary, by setting up the scraping component 5, when the pressure difference between the inside and outside of the self-cleaning protective cover 41 cannot be restored after one cleaning cycle, the controller controls the electromagnet 58 to start, so that the air jet ring 46 drives the scraper 54 and blade 55 to move on the outside of the protective cover 41 during the movement of the protective cover 41. During the movement, the debris attached to and wrapped around the outside of the protective cover 41 is scraped off, which can prevent the entanglement of algae and other debris, and allow the water inside the protective cover 41 to circulate normally, further improving the monitoring accuracy.

[0048] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An outdoor portable water quality monitoring device, comprising a handheld part (1) and a detection part (2), wherein the handheld part (1) and the detection part (2) are connected by a wire (11), and a probe (3) is provided at one end of the detection part (2) away from the wire (11), characterized in that, Also includes: The protective assembly (4) includes a protective cover (41) fitted on the outer periphery of the probe (3), and a filter hole (42) for liquid to pass through is provided on the protective cover (41). The protective assembly (4) also includes a first mounting block (43) fixedly connected to the outside of the detection part (2) and an air jet ring (46) disposed inside the protective cover (41). The protective cover (41) is fixedly connected to the first mounting block (43), and a plurality of air jet holes (47) are evenly provided on the outer circumference of the air jet ring (46). The jet nozzle (47) is used to spray air into the protective cover (41) to block impurities and clean the filter hole (42). The first mounting block (43) has multiple telescopic grooves (44) at one end near the protective cover (41). Each telescopic groove (44) is sealed and slidably connected with a hollow telescopic rod (45). One end of the telescopic rod (45) extends into the protective cover (41) and is fixedly connected to the jet ring (46). The jet hole (47) communicates with the interior of the multiple telescopic rods (45). The number of the plurality of jet holes (47) is the same as that of each group of filter holes (42) and their positions correspond to each other; the plurality of jet holes (47) are all throttling holes. The handheld part (1) is equipped with a micro air pump and a controller. The first mounting block (43) has a connecting groove (48) that connects multiple telescopic grooves (44). The micro air pump is connected to the inside of the connecting groove (48) through an air pipe set in the wire (11). Pressure sensors (49) are provided on both the inner and outer sides of the protective cover (41), and the pressure sensors (49) and the micro air pump are electrically connected to the controller. Scraping assembly (5), the scraping assembly (5) includes a scraper (54) sleeved on the outside of the protective cover (41); The scraping assembly (5) further includes a second mounting block (51) fixedly connected to the outside of the first mounting block (43). A guide rod (53) is slidably connected to the second mounting block (51). One end of the guide rod (53) near the protective cover (41) is fixedly connected to the scraper (54). A blade (55) is fixedly connected to the side of the scraper (54) away from the guide rod (53). The blade (55) moves along the protective cover (41) to scrape off debris attached to the outside of the protective cover (41); The jet ring (46) is fixedly connected to a drive rod (57), and an electromagnet (58) is fixedly connected to one end of the drive rod (57) away from the jet ring (46). A magnetic component (59) is fixedly connected to one end of the guide rod (53) away from the scraper (54). The electromagnet (58) is electrically connected to the controller. When the electromagnet (58) is energized, it generates a magnetic force that attracts the magnetic component (59) with opposite polarities. The first mounting block (43) has a first mounting groove (410) at one end near the protective cover (41). A first elastic member (411) is sleeved inside the first mounting groove (410). One end of the first elastic member (411) is connected to the jet ring (46), and the other end is connected to the end of the first mounting groove (410) away from the protective cover (41). The second mounting block (51) has a first guide groove (52) at one end near the protective cover (41), and the guide rod (53) is slidably connected in the first guide groove (52); the first mounting block (43) has a second guide groove (56) at one end near the protective cover (41) with the same number and corresponding position as the first guide groove (52), and the drive rod (57) is slidably connected in the second guide groove (56); When the pressure difference between the inside and outside of the protective cover (41) reaches the set threshold and completes one self-cleaning, if the pressure difference between the inside and outside of the protective cover (41) cannot be restored within the set time, the controller controls the electromagnet (58) to start, so that the electromagnet (58) generates a magnetic force that attracts the opposite polarity of the magnetic component (59). At the same time, the micro air pump is started again for self-cleaning, so that the air jet ring (46) drives multiple drive rods (57) to move in the corresponding second guide groove (56) during the movement of the protective cover (41). During the movement of the multiple drive rods (57), multiple guide rods (53) will be driven to move in the corresponding first guide groove (52) through the magnetic coupling of multiple electromagnets (58) and multiple magnetic components (59). This allows the scraper (54) to drive the blade (55) to move on the outside of the protective cover (41). During the movement, the blade (55) will cut off the debris wrapped around the outside of the protective cover (41).

2. The portable outdoor water quality monitoring device according to claim 1, characterized in that, The second mounting block (51) has a second mounting groove (510) at one end near the protective cover (41). A second elastic member (511) is fitted inside the second mounting groove (510). One end of the second elastic member (511) is connected to the scraper (54), and the other end is connected to the end of the second mounting groove (510) away from the protective cover (41).

Images