Movable precise replenishment dosing device and method of use thereof

Abstract

This invention relates to the field of dosing device technology and discloses a mobile precision dosing device, including a mobile trolley and a dosing tank detachably mounted on the top of the mobile trolley. The dosing tank is used for targeted dosing of reverse osmosis membrane modules. In this invention, the magnetic suction plate at the bottom of the dosing tank matches and adheres to the corresponding magnetic structure at the top of the positioning base, achieving initial pre-positioning of the dosing tank on the positioning base. This ensures the accuracy of the dosing tank's placement and avoids subsequent precise docking due to excessive placement deviation. After the dosing tank is placed on the positioning base, its conical hopper at the bottom corresponds to the conical chamber inside the positioning base. The conical structure design facilitates the convergence of the dosing agent to the bottom, reducing dosing agent residue at the bottom of the dosing tank. At this time, the quick-connect plug on the liquid guide plate in the middle of the conical hopper and the quick-connect socket at the top of the conical chamber are interlocked to form a connection, preparing for subsequent dosing agent delivery.

Description

Technical Field

[0001] This invention relates to the field of dosing device technology, specifically to a portable precision dosing device and its usage method. Background Technology

[0002] During long-term operation, reverse osmosis membrane modules are prone to scaling, colloidal fouling, and biofouling on the membrane surface due to the presence of metal ions such as calcium, magnesium, and iron, as well as impurities such as organic matter and microorganisms in the raw water. This leads to a decrease in membrane flux and desalination rate, severely affecting the operating efficiency and service life of the reverse osmosis system. To solve this problem, it is usually necessary to add "targeted" agents such as scale inhibitors, bactericides, and reducing agents to the system to delay membrane fouling and maintain membrane performance. The dosing device, as an independent dosing system, can be moved to any reverse osmosis membrane module that needs maintenance and can be connected via a quick-connect interface to replenish the agents for that specific membrane module.

[0003] However, existing dosing tanks all have a flat bottom. When the added chemicals are pumped into the reverse osmosis membrane module by a metering pump, the chemicals tend to remain at the bottom of the tank, resulting in low chemical utilization. In addition, traditional dosing devices require the tank to be disassembled from the device for cleaning, which is cumbersome and time-consuming, reducing the efficiency of equipment maintenance. Furthermore, existing mobile dosing devices rely on manual visual inspection or simple snap-fit ​​structures for tank installation and positioning, making it difficult to ensure precise connection between the tank and the dosing pipeline. This can easily lead to leakage or unstable connection, affecting the accuracy and safety of dosing. Summary of the Invention

[0004] The purpose of this invention is to provide a portable precision dosing device and its usage method, which enables rapid and precise connection between the dosing tank and the dosing pipeline, avoiding leakage and unstable connection problems, and improving the accuracy and safety of dosing; at the same time, it solves the problem of drug residue at the bottom of the dosing tank, improves drug utilization, simplifies the maintenance and cleaning operation of the dosing tank, and improves equipment maintenance efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a mobile precision dosing device, comprising a mobile trolley, and further comprising: A replenishment tank, detachably mounted on the top of the mobile cart, is used to replenish the "targeted" reagents for the reverse osmosis membrane module; A positioning base is installed on the top of the mobile trolley, and the positioning base is used to pre-position the medicine box. A conical compartment is installed at the bottom of the inner wall of the positioning base, and the conical compartment is used to guide and transport the medicine inside the medicine box; The first positioning component is symmetrically distributed on both sides of the inner wall of the positioning base. The first positioning component is used to guide the medicine box to rise and fall in a straight line. The first positioning component includes a first linear guide rail. The second positioning component is symmetrically distributed on both sides of the inner wall of the positioning base. The second positioning component is used to tilt the medicine box along the arc-shaped guide. The second positioning component includes a vertically arranged second linear guide rail and an arc-shaped guide rail connected to the upper end of the second linear guide rail. A synchronization fixing plate is installed inside the positioning base, and the synchronization fixing plate is fixedly installed on one side of the conical chamber.

[0006] Preferably, a lifting platform is fixedly installed on the top of the mobile trolley, the positioning base is fixedly installed on the top of the lifting platform, a timer and a metering pump are respectively installed on one side of the mobile trolley, and a controller is installed on the top of the other side of the mobile trolley.

[0007] Preferably, a conical hopper is integrally formed at the bottom of the inner wall of the medicine box, a magnetic suction plate is integrally formed at the bottom of the medicine box, a liquid guide plate is provided in the middle of the conical hopper, and a quick plug is fixedly connected through one side edge of the liquid guide plate.

[0008] Preferably, the positioning base has a U-shaped structure, and rubber skirts are integrally formed on all four sides of the positioning base. A hollow material plate is fixedly installed on the bottom of the inner wall of the positioning base. The hollow material plate, the conical hopper, and the conical hopper are all conical structures. The bottom of the hollow material plate is connected to the end connecting pipe of the metering pump.

[0009] Preferably, damping buffers are fixedly installed at the inner corners between the hollow material plate and the conical chamber, and a quick socket matching the quick plug is fixedly connected through the top of the conical chamber.

[0010] Preferably, a corrugated sleeve is fixedly installed between the conical bin and the hollow material plate, and connecting ear plates are fixedly installed at the outer inner corners of the conical bin. One end of the connecting ear plate is integrally formed with a sliding pin, and the side of the conical bin near the second positioning component is rotatably connected to a driven gear via a rotating shaft.

[0011] Preferably, the first linear guide is fixedly installed at the top inner corner of the hollow material plate, and the sliding pin at one end of the connecting ear plate slides inside the corresponding first linear guide. The top of the first linear guide is integrally formed with a stop ring.

[0012] Preferably, the second linear guide is fixedly installed at the top inner corner of the hollow material plate, the arc-shaped guide is integrally formed on the top of the corresponding second linear guide, the sliding pin at one end of the connecting ear plate slides inside the corresponding second linear guide and the arc-shaped guide, and the second linear guide and the arc-shaped guide are respectively integrally formed with a linear rack and an arc-shaped rack on the side near the synchronous fixing plate.

[0013] Preferably, the second linear guide is fixedly installed at the inner corner of the top of the hollow material plate, and the arc-shaped guide is integrally formed on the top of the corresponding second linear guide. The sliding pin at one end of the connecting ear plate slides inside the corresponding second linear guide and the arc-shaped guide. The second linear guide and the arc-shaped guide are respectively integrally formed with a linear rack and an arc-shaped rack on the side near the synchronous fixing plate. Each set of arc-shaped racks is integrally formed on the top of the corresponding linear rack, and the two sets of corresponding driven gears mesh with the corresponding linear racks.

[0014] Preferably, a dual-axis motor is fixedly installed in the middle of the inner wall of the synchronous fixing plate, and a drive gear is fixedly installed at the output end of the dual-axis motor, and the two sets of drive gears mesh with the corresponding driven gears respectively.

[0015] S2. The pre-configured medicine box is hoisted or manually placed on the positioning base on the top of the mobile trolley, so that the magnetic plate at the bottom of the medicine box is aligned with the corresponding magnetic structure at the top of the positioning base and attracts it, thus achieving the initial positioning of the medicine box. At this time, the conical hopper at the bottom of the medicine box is connected to the conical chamber in the positioning base.

[0016] S3. The controller controls the timer and metering pump, setting the interval for reagent replenishment and the dosage per dose. The timer sends a signal to the controller at the set time points, and the controller starts the metering pump upon receiving the signal. The metering pump then draws reagent from the hollow material plate at the bottom of the conical chamber through the connecting pipe. The reagent is then precisely delivered to the dosing point of the reverse osmosis membrane module through the hollow material plate, the metering pump, and the output pipeline.

[0017] S4. During the drug delivery process, if the drug level in the replenishment tank gradually decreases, the controller can determine the cumulative delivery amount based on the preset low level sensor signal. The dual-axis motor is then activated, causing the replenishment tank to move upwards along the first and second linear guide rails until it is positioned at one end by the stop ring. The other end then enters the arc-shaped guide rail. The tilt of the replenishment tank causes the residual drug inside to converge towards the conical hopper under the action of gravity.

[0018] Compared with the prior art, the beneficial effects of the present invention are: In this invention, the magnetic suction plate at the bottom of the medicine box matches and adheres to the corresponding magnetic structure at the top of the positioning base, achieving initial pre-positioning of the medicine box on the positioning base and ensuring accurate placement. (The quick-connect plug at the bottom of the medicine box and the quick-connect socket at the top of the conical compartment are similar to existing washing machine water connectors, allowing for quick insertion and separation under external force, thus connecting the pipes on both sides.) This avoids significant placement deviations that could affect subsequent precise docking. Once the medicine box is placed on the positioning base, its conical hopper at the bottom corresponds to the conical compartment within the positioning base. The conical structure design facilitates the convergence of the medicine to the bottom, reducing medicine residue at the bottom of the medicine box. At this point, the quick-connect plug on the liquid guide plate in the middle of the conical hopper and the quick-connect socket at the top of the conical compartment are interlocked, forming a connection, preparing for subsequent medicine delivery.

[0019] In this invention, when the medicine in the medicine box is almost empty, the controller starts the dual-axis motor. The drive gear at the output end of the dual-axis motor starts to rotate. Since the drive gear meshes with the driven gear on one side of the conical compartment, the driven gear rotates accordingly, thereby driving the conical compartment to move as a whole. When the sliding pin slides in the first linear guide rail, the conical compartment rises in a straight line until the stop ring at the top of the first linear guide rail restricts the sliding stroke of the sliding pin. After reaching the entrance of the arc-shaped guide rail, under the action of the drive gear continuously driving the driven gear to rotate, the sliding pin slides along the trajectory of the arc-shaped guide rail. Due to the guiding effect of the arc-shaped guide rail, the conical compartment rotates and tilts at a certain angle while rising, further aggravating the tilt angle of the medicine box. The tilt of the replenishment tank causes the residual medicine inside to converge into the conical hopper under the action of gravity. It then enters the hollow material plate through the quick plug on the liquid guide plate and the quick socket of the conical hopper, and is finally drawn and transported by the metering pump. This effectively solves the problem of medicine residue at the bottom of the flat-bottomed replenishment tank, significantly improves the utilization rate of medicine, and avoids medicine waste. At the same time, the tilted replenishment tank makes it easy to completely pour out after subsequent cleaning with cleaning solution. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the controller installation structure on the mobile vehicle in this invention; Figure 3 This is a schematic diagram of the medicine box structure in this invention; Figure 4 This is a schematic diagram of the internal structure of the medicine box in this invention; Figure 5 This is a schematic diagram of the disassembled structure of the medicine box and the connecting seat in this invention; Figure 6 for Figure 3 A magnified view of the structure at point A in the middle; Figure 7 for Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0021] In the diagram: 100, mobile trolley; 200, medicine box; 300, positioning base; 400, conical hopper; 500, first positioning component; 600, second positioning component; 700, synchronous fixing plate; 11, lifting platform; 21, timer; 22, controller; 23, metering pump; 24, conical hopper; 25, magnetic suction plate; 26, liquid guide plate; 27, quick connector; 31, rubber skirt; 32, hollow material plate; 40, damping buffer; 41, quick connector; 42, corrugated sleeve; 43, connecting ear plate; 44, driven gear; 431, sliding pin; 51, first linear guide rail; 52, stop ring; 61, linear rack; 62, arc rack; 63, second linear guide rail; 64, arc guide rail; 71, dual-axis motor; 72, driving gear. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. The described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] Example 1: This embodiment describes a portable, precise dosing device and its usage method, such as... Figures 1-7 As shown, it includes a mobile trolley 100, and also includes: The replenishment tank 200 is detachably installed on the top of the mobile cart 100. The replenishment tank 200 is used to replenish the "targeted" reagents for the reverse osmosis membrane module. The positioning base 300 is installed on the top of the mobile trolley 100 and is used to pre-position the medicine box 200. The conical chamber 400 is installed at the bottom of the inner wall of the positioning base 300. The conical chamber 400 is used to guide and transport the medicine inside the medicine box 200. The first positioning component 500 is symmetrically distributed on both sides of the inner wall of the positioning base 300. The first positioning component 500 is used to guide the medicine box 200 to rise and fall along a straight line. The first positioning component 500 includes a first linear guide rail 51.

[0024] The mobile trolley 100 is fixedly equipped with a lifting platform 11 on its top, and a positioning base 300 is fixedly installed on the top of the lifting platform 11. A timer 21 and a metering pump 23 are installed on one side of the mobile trolley 100, and a controller 22 is installed on the top of the other side of the mobile trolley 100. During the dosing process, the metering pump 23 is connected to the conical chamber 400 through the hollow material plate 32 to accurately pump the reagent in the dosing tank 200 into the reverse osmosis membrane module.

[0025] The inner wall of the medicine tank 200 has an integrally formed conical hopper 24 at the bottom, and an integrally formed magnetic suction plate 25 at the bottom of the medicine tank 200. A liquid guide plate 26 is provided in the middle of the conical hopper 24. A quick plug 27 is fixedly connected to one side edge of the liquid guide plate 26. The quick plug 27 at the bottom of the medicine tank 200 and the quick socket 41 at the top of the conical compartment 400 are similar to the existing washing water connector structure. They can be quickly inserted and separated after being subjected to external force, so as to realize the connection of the pipes on both sides.

[0026] The positioning base 300 has a U-shaped structure, and rubber skirts 31 are integrally formed on all four sides. A hollow material plate 32 is fixedly installed on the bottom of the inner wall of the positioning base 300. The hollow material plate 32, the conical chamber 400, and the conical hopper 24 are all conical structures. The bottom of the hollow material plate 32 is connected to the end connecting pipe of the metering pump 23. Damping buffers 40 are fixedly installed at the inner corners between the hollow material plate 32 and the conical chamber 400. A quick socket 41 matching the quick plug 27 is fixedly connected through the top of the conical chamber 400. The damping buffers 40 between the hollow material plate 32 and the conical chamber 400 play a buffering role when assembling the replenishment box 200 and the conical chamber 400 to avoid rigid collisions that could damage the equipment. The rubber skirts 31 around the positioning base 300 can play a buffering and sealing role during the placement and docking of the replenishment box 200 to prevent drug leakage and improve operational safety. The corrugated sleeve 42 between the conical hopper 400 and the hollow material plate 32 ensures the sealing of the drug delivery channel during the lifting and tilting of the conical hopper 400, thus preventing drug leakage that could lead to waste and pollution.

[0027] In this embodiment, the replenishment tank 200 is adjusted to a suitable height via the lifting platform 11 to align with the dosing interface of the reverse osmosis membrane module. The replenishment tank 200 is mounted on the lifting platform 11 at the top of the mobile trolley 100. After the mobile trolley 100 moves to the side of the reverse osmosis membrane module, the replenishment tank 200, loaded with the targeted reagent, is fixed to the top of the mobile trolley 100. During the dosing process, the metering pump 23 is connected to the conical chamber 400 via the hollow material plate 32, precisely pumping the reagent from the replenishment tank 200 into the reverse osmosis membrane module. The timer 21 can control the duration and interval of the dosing according to preset time parameters, achieving automated dosing and further ensuring the accuracy of the dosing, thus achieving precise dosing of the reverse osmosis membrane module.

[0028] In this embodiment, the magnetic suction plate 25 at the bottom of the medicine tank 200 matches and adheres to the corresponding magnetic suction structure at the top of the positioning base 300, achieving initial pre-positioning of the medicine tank 200 on the positioning base 300 and ensuring the accuracy of the medicine tank 200's placement. The quick-connect plug 27 at the bottom of the medicine tank 200 and the quick-connect socket 41 at the top of the conical compartment 400 are similar to existing washing machine water connector structures, allowing for quick insertion and separation under external force, achieving connection between the two pipes and preventing subsequent precise docking due to excessive placement deviation. When the medicine tank 200 is placed on the positioning base 300, its conical hopper 24 at the bottom corresponds to the conical compartment 400 inside the positioning base 300. The conical structure design facilitates the convergence of medicine to the bottom, reducing medicine residue at the bottom of the medicine tank 200. At this time, the quick-connect plug 27 on the liquid guide plate 26 in the middle of the conical hopper 24 and the quick-connect socket 41 at the top of the conical compartment 400 are interlocked to form a connection, preparing for subsequent medicine delivery.

[0029] Example 2: Based on Example 1, this example introduces a portable precision dosing device and its usage method, such as... Figures 3-7 As shown, Includes: a second positioning component 600, which is symmetrically distributed on both sides of the inner wall of the positioning base 300. The second positioning component 600 is used to tilt the medicine box 200 along the arc-shaped guide. The second positioning component 600 includes a vertically arranged second linear guide rail 63 and an arc-shaped guide rail 64 connected to the upper end of the second linear guide rail 63. The synchronization fixing plate 700 is installed inside the positioning base 300 and is fixedly installed on one side of the conical chamber 400. A corrugated sleeve 42 is fixedly installed between the conical hopper 400 and the hollow material plate 32. Connecting ear plates 43 are fixedly installed at the inner corners of the outer surface of the conical hopper 400. A sliding pin 431 is integrally formed at one end of each connecting ear plate 43. A driven gear 44 is rotatably connected to the side of the conical hopper 400 near the second positioning component 600 via a rotating shaft. A first linear guide rail 51 is fixedly installed at the top inner corner of the hollow material plate 32. The sliding pin 431 at one end of the connecting ear plate 43 slides inside the corresponding first linear guide rail 51. A stop ring 52 is integrally formed on the top of the guide rail 51. The second linear guide rail 63 is fixedly installed at the inner corner of the top of the hollow material plate 32. The arc-shaped guide rail 64 is integrally formed on the top of the corresponding second linear guide rail 63. The sliding pin 431 at one end of the connecting ear plate 43 slides inside the corresponding second linear guide rail 63 and arc-shaped guide rail 64. The second linear guide rail 63 and the arc-shaped guide rail 64 are respectively integrally formed with a linear rack 61 and an arc-shaped rack 62 on the side near the synchronous fixing plate 700. Each set of arc-shaped racks 62 is integrally formed on the top of the guide rail 51. At the top of the corresponding linear rack 61, two sets of corresponding driven gears 44 mesh with the corresponding linear rack 61. A dual-axis motor 71 is fixedly installed in the middle of the inner wall of the synchronous fixing plate 700. A drive gear 72 is fixedly installed at the output end of the dual-axis motor 71. The two sets of drive gears 72 mesh with the corresponding driven gears 44. The drive gears 72 at the output end of the dual-axis motor 71 cooperate with the driven gears 44, causing the driven gears 44 to rotate, thereby driving the conical chamber 400 to move as a whole. When the sliding pin 431... When sliding within the straight guide rail 51, the conical chamber 400 rises in a straight direction until the stop ring 52 at the top of the first straight guide rail 51 restricts the sliding stroke of the sliding pin 431. After reaching the entrance of the arc guide rail 64, under the continuous rotation of the driven gear 44 driven by the driving gear 72, the sliding pin 431 slides along the trajectory of the arc guide rail 64. Due to the guiding effect of the arc guide rail 64, the conical chamber 400 rotates and tilts at a certain angle while rising, further aggravating the tilt angle of the medicine box 200. The tilt of the replenishment tank 200 causes the residual medicine inside to converge towards the conical hopper 24 under the action of gravity. It then enters the hollow material plate 32 through the quick plug 27 on the liquid guide plate 26 and the quick socket 41 of the conical hopper 400, and is finally drawn and transported by the metering pump 23. This effectively solves the problem of medicine residue at the bottom of the flat-bottomed replenishment tank, significantly improves the utilization rate of the medicine, and avoids medicine waste. At the same time, the tilted replenishment tank 200 makes it easy to completely pour out after subsequent cleaning with cleaning fluid.

[0030] In this embodiment, when the medicine in the medicine tank 200 is almost empty, the controller 22 starts the dual-axis motor 71. The drive gear 72 at the output end of the dual-axis motor 71 starts to rotate. Since the drive gear 72 meshes with the driven gear 44 on one side of the conical compartment 400, the driven gear 44 rotates accordingly, thereby driving the conical compartment 400 to move as a whole. When the sliding pin 431 slides in the first linear guide rail 51, the conical compartment 400 rises in a straight line until the stop ring 52 at the top of the first linear guide rail 51 restricts the sliding stroke of the sliding pin 431. After reaching the entrance of the arc-shaped guide rail 64, under the action of the drive gear 72 continuously driving the driven gear 44 to rotate, the sliding pin 431 slides along the trajectory of the arc-shaped guide rail 64. Due to the guiding effect of the arc-shaped guide rail 64, the conical compartment 400 rotates and tilts at a certain angle while rising, further aggravating the tilt angle of the medicine tank 200. The tilt of the replenishment tank 200 causes the residual medicine inside to converge towards the conical hopper 24 under the action of gravity. It then enters the hollow material plate 32 through the quick plug 27 on the liquid guide plate 26 and the quick socket 41 of the conical hopper 400, and is finally drawn and transported by the metering pump 23. This effectively solves the problem of medicine residue at the bottom of the flat-bottomed replenishment tank, significantly improves the utilization rate of the medicine, and avoids medicine waste. At the same time, the tilted replenishment tank 200 makes it easy to completely pour out after subsequent cleaning with cleaning fluid.

[0031] Working Principle: When using this portable precision dosing device, firstly, the dosing tank 200 containing the "targeted" medication is placed on the positioning base 300 on top of the mobile trolley 100. During placement, the magnetic suction plate 25 at the bottom of the dosing tank 200 and the corresponding magnetic suction structure at the top of the positioning base 300 attract each other, achieving preliminary positioning and ensuring the approximate accuracy of the dosing tank 200's position. Simultaneously, the conical hopper 24 at the bottom of the dosing tank 200 corresponds to the conical chamber 400 inside the positioning base 300. The quick-connect plug 27 on the liquid guide plate 26 in the middle of the conical hopper 24 and the quick-connect socket 41 at the top of the conical chamber 400 quickly insert into each other under the weight of the dosing tank 200 itself or after applying a slight external force, forming a connecting channel for medication delivery.

[0032] Next, by operating the controller 22 or the control device of the mobile trolley 100 itself, the mobile trolley 100 is driven to the vicinity of the reverse osmosis membrane module that needs to be replenished with reagents. After reaching the designated position, according to the height of the reverse osmosis membrane module's reagent filling interface, the lifting platform 11 is activated via the controller 22 to adjust the positioning base 300 and the reagent filling tank 200 to the appropriate docking height. Subsequently, the operator can set the reagent filling parameters via the controller 22, such as the total amount of reagent, the reagent filling rate, and the reagent filling time interval. The timer 21 will work in conjunction with the metering pump 23 according to these preset parameters. After the metering pump 23 is started, the reagent in the reagent filling tank 200 is sequentially extracted through the quick plug 27, quick socket 41, conical chamber 400, and hollow material plate 32 through the connecting pipe connected to the hollow material plate 32, and precisely pumped into the reagent filling pipeline of the reverse osmosis membrane module to achieve "targeted" reagent replenishment. When the liquid level in the medicine tank 200 drops to a set low liquid level threshold (detectable by a liquid level sensor built into or externally installed in the medicine tank 200, not shown in the figure), the controller 22 receives the signal and starts the dual-axis motor 71. The drive gear 72 at the output end of the dual-axis motor 71 begins to rotate, driving the driven gear 44 meshing with it to rotate, thereby driving the conical chamber 400 to move. At this time, the sliding pin 431 at one end of the ear plate 43 slides upward in the first linear guide rail 51 of the first positioning assembly 500, and at the same time, on the side of the second positioning assembly 600, the sliding pin 431 first slides upward in the second linear guide rail 63. When the sliding pin 431 in the first linear guide rail 51 touches the stop ring 52, its linear upward movement stops, while the sliding pin 431 in the second linear guide rail 63 continues to rise and enters the arc-shaped guide rail 64. Under the continuous drive of the drive gear 72, the sliding pin 431 slides along the trajectory of the arc-shaped guide rail 64, causing the conical chamber 400 to further tilt along an arc-shaped trajectory on the basis of its upward movement. Because the conical chamber 400 cooperates with the conical hopper 24 of the replenishment tank 200, this tilting motion causes the replenishment tank 200 as a whole to tilt around the side closest to the second positioning component 600. The tilting of the replenishment tank 200 causes the residual medicine inside to concentrate towards the conical hopper 24 under the action of gravity, and enter the conical chamber 400 and the hollow material plate 32 through the liquid guide plate 26, quick plug 27, and quick socket 41, and is finally completely transported out by the metering pump 23, effectively reducing medicine residue.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mobile precision dosing device, comprising a mobile trolley (100), characterized in that, Also includes: A replenishment tank (200) is detachably mounted on the top of the mobile trolley (100) and is used to replenish the "targeted" reagents for the reverse osmosis membrane module. A positioning base (300) is installed on the top of the mobile trolley (100), and the positioning base (300) is used to pre-position the medicine box (200); A conical chamber (400) is installed at the bottom of the inner wall of the positioning base (300), and the conical chamber (400) is used to guide and transport the medicine inside the medicine box (200); The first positioning component (500) is symmetrically distributed on both sides of the inner wall of the positioning base (300). The first positioning component (500) is used to guide the medicine box (200) to rise and fall along a straight line. The first positioning component (500) includes a first linear guide rail (51). The second positioning component (600) is symmetrically distributed on both sides of the inner wall of the positioning base (300). The second positioning component (600) is used to tilt the medicine box (200) along the arc-shaped guide. The second positioning component (600) includes a vertically arranged second linear guide rail (63) and an arc-shaped guide rail (64) connected to the upper end of the second linear guide rail (63). A synchronization fixing plate (700) is installed inside the positioning base (300), and the synchronization fixing plate (700) is fixedly installed on one side of the conical chamber (400).

2. The portable precision dosing device according to claim 1, characterized in that: The mobile trolley (100) is fixedly installed with a lifting platform (11) on its top. The positioning base (300) is fixedly installed on the top of the lifting platform (11). A timer (21) and a metering pump (23) are respectively installed on one side of the mobile trolley (100). A controller (22) is installed on the top of the other side of the mobile trolley (100).

3. The portable precision dosing device and its method of use according to claim 2, characterized in that: The bottom of the inner wall of the medicine box (200) is integrally formed with a conical hopper (24), the bottom of the medicine box (200) is integrally formed with a magnetic suction plate (25), a liquid guide plate (26) is provided in the middle of the conical hopper (24), and a quick plug (27) is fixedly connected through one side edge of the liquid guide plate (26).

4. A portable precision dosing device according to claim 3, characterized in that: The positioning base (300) has a U-shaped structure. The positioning base (300) is integrally formed with rubber skirts (31) on all four sides. A hollow material plate (32) is fixedly installed on the bottom of the inner wall of the positioning base (300). The hollow material plate (32), the conical hopper (400), and the conical hopper (24) are all conical structures. The bottom of the hollow material plate (32) is connected to the end connecting pipe of the metering pump (23).

5. A portable precision dosing device according to claim 4, characterized in that: Damping buffers (40) are fixedly installed at the inner corners between the hollow material plate (32) and the conical chamber (400), and a quick socket (41) matching the quick plug (27) is fixedly connected through the top of the conical chamber (400).

6. A portable precision dosing device according to claim 5, characterized in that: A corrugated sleeve (42) is fixedly installed between the conical bin (400) and the hollow material plate (32). Connecting ear plates (43) are fixedly installed at the inner corners of the outer side of the conical bin (400). A sliding pin (431) is integrally formed at one end of the connecting ear plate (43). A driven gear (44) is rotatably connected to the side of the conical bin (400) near the second positioning component (600) via a rotating shaft.

7. A portable precision dosing device according to claim 6, characterized in that: The first linear guide (51) is fixedly installed at the top inner corner of the hollow material plate (32). The sliding pin (431) at one end of the connecting ear plate (43) slides inside the corresponding first linear guide (51). The top of the first linear guide (51) is integrally formed with a stop ring (52).

8. The portable precision dosing device and its method of use according to claim 7, characterized in that: The second linear guide (63) is fixedly installed at the top inner corner of the hollow material plate (32). The arc-shaped guide (64) is integrally formed on the top of the corresponding second linear guide (63). The sliding pin (431) at one end of the connecting ear plate (43) slides inside the corresponding second linear guide (63) and the arc-shaped guide (64). The second linear guide (63) and the arc-shaped guide (64) are integrally formed with a linear rack (61) and an arc-shaped rack (62) on the side near the synchronous fixing plate (700), respectively. Each set of arc-shaped racks (62) is integrally formed on the top of the corresponding linear rack (61). The two sets of corresponding driven gears (44) mesh with the corresponding linear racks (61).

9. A portable precision dosing device according to claim 8, characterized in that: A dual-axis motor (71) is fixedly installed in the middle of the inner wall of the synchronous fixing plate (700). The output end of the dual-axis motor (71) is fixedly installed with a drive gear (72). The two sets of drive gears (72) mesh with the corresponding driven gears (44).

10. The method of using the portable precision dosing device according to any one of claims 1-9, characterized in that, Includes the following steps: S1. Move the mobile trolley (100) to the vicinity of the dosing point of the reverse osmosis membrane module using the casters at its bottom, and fix the position of the mobile trolley (100) with the braking device to ensure that it will not be displaced in subsequent operations. S2. The pre-configured medicine tank (200) is hoisted or manually placed on the positioning base (300) on the top of the mobile trolley (100), so that the magnetic suction plate (25) at the bottom of the medicine tank (200) is aligned with the corresponding magnetic suction structure at the top of the positioning base (300) and adsorbed, so as to achieve the initial positioning of the medicine tank (200). At this time, the conical hopper (24) at the bottom of the medicine tank (200) is connected to the conical chamber (400) inside the positioning base (300). S3. The controller (22) controls the timer (21) and the metering pump (23) to work, sets the time interval for reagent replenishment and the dosage for each dosing, and the timer (21) sends a signal to the controller (22) according to the set time node. After receiving the signal, the controller (22) starts the metering pump (23). The metering pump (23) starts working and draws the reagent from the hollow material plate (32) at the bottom of the conical chamber (400) through the connecting pipe. The reagent is then accurately delivered to the dosing point of the reverse osmosis membrane module through the hollow material plate (32), the metering pump (23) and the output pipeline. S4. During the drug delivery process, if the drug level in the replenishment tank (200) gradually decreases, the controller (22) can start the dual-axis motor (71) based on the preset low level sensor signal or by judging the cumulative delivery amount through the metering pump (23), so that the replenishment tank (200) moves upward along the first linear guide rail (51) and the second linear guide rail (63) until it is positioned at one end of the inner corner by the stop ring (52), and the other end enters the arc-shaped guide rail (64). The tilt of the replenishment tank (200) causes the residual drug inside to converge towards the conical hopper (24) under the action of gravity.

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