A rapid quantitative kit for ammonia nitrogen reagent

Abstract

The utility model relates to the technical field of kit, concretely to a kind of ammonia nitrogen reagent is with rapid quantitative kit, including box, support seat, color card, limit frame, protective plate and connecting mechanism, the support seat is set in the box bottom, the support seat is equipped with several, the box top center is equipped with liquid inlet assembly, the box one side bottom is equipped with liquid outlet assembly, the limit frame is set in the box front one side, the box front other side is equipped with observation window, the color card is located in the limit frame interior, the color card top is connected with electromagnet one end, electromagnet other end adsorbs the limit frame inner wall, the protective plate is connected with the limit frame by the connecting mechanism, the connecting mechanism includes sliding slot, fixed block, limit block, bearing, electric push rod and limit plate, the sliding slot is opened in the limit frame inner wall, a kind of ammonia nitrogen reagent is with rapid quantitative kit of the utility model, solve the problem that current equipment protection effect is poorer.

Description

Technical Field

[0001] This utility model relates to the field of reagent kit technology, specifically a rapid quantitative reagent kit for ammonia nitrogen. Background Technology

[0002] As is well known, the rapid quantitative reagent kit for ammonia nitrogen is a portable chemical analysis tool used for the rapid detection of ammonia nitrogen content in water bodies. It is mainly used in environmental monitoring, wastewater treatment, aquaculture, and drinking water safety. Its core function is to convert ammonia nitrogen in water (existing in the form of free ammonia or ammonium ions) into a measurable colorimetric substance through a chemical reaction.

[0003] Existing rapid quantitative ammonia nitrogen reagent kits typically use a color chart fixed in the reagent box with an observation window to observe the liquid color inside the box, in order to facilitate user operation. However, the color charts in existing designs generally lack protective devices. Long-term exposure to the external environment makes them susceptible to direct sunlight, causing the color charts made of materials such as acrylic to fade and resulting in deviations in the colorimetric reference. Actual measurements show that the color error of traditional open color charts can reach 15%-20% after one year of use, which seriously affects the accuracy of the test results. In addition, the lack of protective design may also cause the color chart to shift or be damaged due to accidental collisions, increasing maintenance costs and operational risks. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a rapid quantitative reagent kit for ammonia nitrogen.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a rapid quantitative reagent kit for ammonia nitrogen, comprising a box, a support base, a color card, a limiting frame, a protective plate, and a connecting mechanism. The support base is located at the bottom of the box, and several support bases are provided. A liquid inlet assembly is located at the center of the top of the box, and a liquid outlet assembly is located at the bottom of one side of the box. The limiting frame is located on one side of the front of the box, and an observation window is located on the other side of the front of the box. The color card is located inside the limiting frame, and the top of the color card is connected to one end of an electromagnet. The other end of the electromagnet is attracted to the inner wall of the limiting frame. The protective plate is connected to the limiting frame via the connecting mechanism. The connecting mechanism includes a sliding groove, a fixing block, a limiting block, a bearing, an electric push rod, and a limiting plate. The sliding groove is formed in the inner wall of the limiting frame, and the side of the protective plate extends into the sliding groove. The limiting block is fixedly connected to the outer wall of the front of the limiting frame. One end of the fixing block is connected to the protective plate, and the top of the fixing block contacts the bottom of the limiting block. One end of the electric push rod is connected to the fixing block via the bearing, and the other end of the electric push rod is connected to one end of the limiting plate. The other end of the limiting plate contacts the limiting block.

[0008] To facilitate carrying the box, this utility model is improved by providing a handle on the side of the box, which is fixedly connected to the side of the box. There are two handles, which are respectively located on both sides of the box.

[0009] To improve stability, this utility model is improved by having several of the aforementioned support seats arranged symmetrically.

[0010] To improve stability, this invention is improved by providing two electromagnets.

[0011] To improve the strength of the observation window, this utility model is improved by using transparent tempered glass as the observation window material.

[0012] To facilitate the sliding of the protective plate in the groove, the present invention is improved in that the groove is matched with the protective plate.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a rapid quantitative reagent kit for ammonia nitrogen, which has the following beneficial effects:

[0015] This rapid quantitative reagent kit for ammonia nitrogen uses a protective plate to create a comprehensive protection and convenient maintenance mechanism for the color card. When the equipment is not in use, the protective plate slides down the slide along the groove under the drive of the electric push rod, precisely sealing the opening of the limiting frame and forming an independent space that is protected from light and dust, completely isolating the color card from the external environment. This design can effectively inhibit the irradiation of acrylic color cards by ultraviolet rays. In addition, the inner wall of the limiting frame is coated with a matte coating (reflectivity ≤15%), which can reduce the aging rate of the color card by more than 60%, significantly delay the fading phenomenon, and ensure the long-term stability of the colorimetric standard.

[0016] When the color card reaches the end of its service life or is accidentally damaged, the operation procedure is as follows: First, trigger the electric push rod through the control system to raise the protective plate to the fully open state shown in the figure, exposing the color card replacement area; then turn off the power to the electromagnet, and use its characteristics of being attracted when energized (single magnetic force ≥50N) and released when de-energized to disconnect the color card from the martensitic stainless steel limiting frame; at this time, the staff can use the groove (3mm deep) reserved on the top of the color card to manually and smoothly pull out the old card, insert a new color card of the same specification, and then activate the electromagnet on the new color card to attract the inner wall of the limiting frame.

[0017] This design combines physical isolation with intelligent locking by an electromagnet, achieving both active protection of the color card and simplifying the maintenance process. It solves the problems of easy aging and cumbersome replacement of traditional open color cards, improving the reliability and practicality of the equipment in field operations and long-term monitoring scenarios, and providing structural guarantees for the accuracy and stability of rapid ammonia nitrogen detection. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This utility model Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0020] Figure 3 This is a schematic diagram of the axonal structure of the present invention;

[0021] Figure 4 This utility model Figure 1 The front view;

[0022] In the diagram: 1. Box body; 2. Liquid inlet assembly; 3. Liquid outlet assembly; 4. Observation window; 5. Support base; 6. Color card; 7. Limiting frame; 8. Electromagnet; 9. Protective plate; 10. Connecting mechanism; 11. Slide groove; 12. Fixing block; 13. Limiting block; 14. Bearing; 15. Electric push rod; 16. Limiting plate; 17. Handle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 A rapid quantitative reagent kit for ammonia nitrogen includes a housing 1, a support base 5, a color card 6, a limiting frame 7, a protective plate 9, and a connecting mechanism 10. The support base 5 is located at the bottom of the housing 1, and several support bases 5 are provided. A liquid inlet component 2 is located at the center of the top of the housing 1, and a liquid outlet component 3 is located at the bottom of one side of the housing 1. The limiting frame 7 is located on one side of the front of the housing 1, and an observation window 4 is located on the other side of the front of the housing 1. The color card 6 is located inside the limiting frame 7, and its top is connected to one end of an electromagnet 8. The other end of the electromagnet 8 is attracted to the inner wall of the limiting frame 7. The protective plate 9 is connected to the limiting frame via the connecting mechanism 10. 7. The connecting mechanism 10 includes a sliding groove 11, a fixing block 12, a limiting block 13, a bearing 14, an electric push rod 15, and a limiting plate 16. The sliding groove 11 is formed in the inner wall of the limiting frame 7. The side of the protective plate 9 extends into the sliding groove 11. The limiting block 13 is fixedly connected to the outer wall of the front of the limiting frame 7. One end of the fixing block 12 is connected to the protective plate 9, and the top of the fixing block 12 contacts the bottom of the limiting block 13. One end of the electric push rod 15 is connected to the fixing block 12 through the bearing 14, and the other end of the electric push rod 15 is connected to one end of the limiting plate 16. The other end of the limiting plate 16 contacts the limiting block 13.

[0025] Working principle: Place the device in the designated location, connect it to external mains power for power supply, and securely support the housing 1 via the support base 5. Figure 1 As shown, the water sample to be tested is first injected into the chamber 1 through the liquid inlet component 2. Then, using the graduated pipette provided with the reagent kit, various reaction reagents are accurately measured and added into the chamber 1 in sequence. After thorough mixing, the mixture is allowed to stand for about 30 minutes until the liquid color is stable. The solution color is observed through the observation window 4 and compared with the color card 6 in the limit frame 7 to complete the semi-quantitative analysis of ammonia nitrogen concentration.

[0026] After the test is completed, the waste liquid in the tank 1 is discharged into the designated recycling container through the liquid discharge component 3. Then, the cleaning liquid is injected through the liquid inlet component 2. The tank 1 is manually shaken to clean the inner wall. After completion, the waste liquid is discharged again through the liquid discharge component 3. The cleaning can be repeated by injecting clean water until it is clean. The specific number of cleaning times is adjusted according to the degree of water pollution (those skilled in the art can determine it according to the actual situation).

[0027] After the work is completed, the protection process is initiated: the staff holds the protective plate 9 and operates the electric push rod 15 to separate the limiting plate 16 from the limiting block 13, pushing the protective plate 9 down the slide 11 to the bottom, completely covering the opening of the limiting frame 7, thus achieving closed protection for the color card 6. Then, the electric push rod 15 (connected to the fixed block 12 through the bearing 14) is rotated 180°, and the push rod is activated again to make the limiting plate 16 press against the bottom of the limiting block 13, forming a mechanical lock on the protective plate 9 to prevent accidental lifting. This design completely isolates the color card 6 from the external environment when the equipment is idle, effectively blocking direct sunlight and preventing the acrylic color card from fading due to light aging, thus ensuring the accuracy of subsequent color matching.

[0028] When color chart 6 reaches the end of its service life or is accidentally damaged and needs to be replaced, such as Figure 1 As shown, first turn off the electromagnet 8 (which is attracted to the inner wall of the limiting frame 7 made of martensitic stainless steel). After releasing the magnetic fixation, the color card 6 can be removed from the limiting frame 7. Because an operating gap is reserved between the color card 6 and the protective plate 9 (e.g., ... Figure 4 As shown), the staff can directly insert their fingers to pry out the old card and then replace it with the new color card 6. The new color card 6 can be purchased from the manufacturer, which will not be described in detail here.

[0029] The electric actuator 15 mentioned in the article is a commercially available standard part. It integrates a motor, lead screw drive and other structures. Its working principle conforms to the JB / T10403-2004 industry standard. The specific technical details are well known in the field and will not be described in detail here.

[0030] In this structure, the design of the electromagnet 8 positioned on top of the color card 6 has been optimized through mechanics and materials science to ensure that it neither affects the performance of the color card nor fails to achieve a stable adsorption effect. Specifically, the electromagnet adopts an ultra-thin flat structure (thickness ≤ 2mm) and is tightly bonded to the top edge of the color card using epoxy resin adhesive. Its installation position avoids the color display area of ​​the color card (distance from the colorimetric reference color block ≥ 10mm) to prevent interference from electromagnetic devices on light reflection or transmission. The electromagnet 8 has a built-in high-capacity lithium polymer battery to power it, and a charging port is provided on the outside of the electromagnet 8 to charge the battery.

[0031] The liquid inlet assembly 2 adopts a funnel-shaped structure with a sealing plug, and the diameter is compatible with standard pipettes. The inner wall is equipped with a guide groove to prevent splashing, and the top can be screwed on to prevent liquid from sloshing out during transportation. The liquid outlet assembly 3 is a guide port controlled by a solenoid valve.

[0032] To address the issue of inconvenience in lifting the box 1, this embodiment features two symmetrical fixed handles 17 on both sides of the box 1. The handles 17 are made of ABS engineering plastic and are integrally fixed to the sides of the box through injection molding. Each handle can withstand a vertical pulling force of ≥10kg. The symmetrical layout conforms to ergonomic design, facilitating single-person two-hand lifting or two-person collaborative handling. When lifting, the palm naturally conforms to the curved surface of the handle, and the grip force is evenly distributed, effectively reducing hand fatigue. This structure has been verified by mechanical testing to ensure that the equipment remains balanced during movement, preventing reagents from tipping over or the box from deforming due to unilateral force, significantly improving the portability and operational safety of the equipment.

[0033] To improve the stability of the equipment placement, several support bases 5 are symmetrically arranged in this embodiment. The support bases are made of aluminum alloy and have anodized surfaces. They are evenly distributed at the four corners and edges of the bottom of the housing 1 and fixed with screws. The symmetrical layout combined with the rigid structure of the metal support bases can evenly distribute the load on the housing, enhance the anti-overturning ability, ensure that the equipment remains stable in various scenarios, provide a stable foundation for testing operations, and improve overall reliability.

[0034] To further enhance the connection stability between the color card 6 and the limiting frame 7, this embodiment sets an electromagnet 8 on each side of the top of the color card 6. The two electromagnets 8 are symmetrically distributed, and their adsorption ends are made of neodymium iron boron permanent magnet material. The adsorption force of a single electromagnet is ≥50N. When the electromagnet 8 is energized, both ends are simultaneously adsorbed onto the inner wall of the limiting frame 7 (made of martensitic stainless steel), forming a double-point fixing structure, which can effectively counteract the displacement or shaking of the color card 6 caused by external force collision.

[0035] To enhance the structural strength of the observation window 4, this embodiment uses transparent tempered glass. This glass is treated with a high-temperature quenching process, and its impact resistance is more than 5 times that of ordinary glass. Its surface hardness reaches level 6H, which can effectively resist external impacts and scratches. Its light transmittance is ≥91.5%, ensuring no optical distortion when observing the color of the liquid. It is installed in the housing 1 with a sealing strip, which not only ensures visual clarity but also enhances the overall protective performance of the equipment, providing a reliable guarantee for long-term stable use.

[0036] To facilitate the smooth sliding of the protective plate 9 within the slide groove 11, this embodiment employs a design that precisely matches the slide groove 11 with the protective plate 9. The error between the width of the slide groove and the thickness of the protective plate is controlled within ±0.1mm. The inner wall is mirror-polished (roughness Ra≤0.8μm). Simultaneously, polytetrafluoroethylene sliding plates are embedded on both sides of the protective plate to reduce the coefficient of friction to below 0.05. This matching design ensures that the protective plate can be pushed and pulled smoothly without jamming, allowing for easy operation with one hand. It also prevents dust from entering due to excessively large gaps or jamming due to excessively small gaps, thus improving the convenience and reliability of the equipment.

[0037] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid quantitative reagent kit for ammonia nitrogen, comprising a housing (1), a support base (5), a color card (6), a limiting frame (7), a protective plate (9), and a connecting mechanism (10), characterized in that: The support base (5) is located at the bottom of the box body (1), and there are several support bases (5). The top center of the box body (1) is provided with a liquid inlet assembly (2), and the bottom of one side of the box body (1) is provided with a liquid outlet assembly (3). The limiting frame (7) is located on one side of the front of the box body (1), and the other side of the front of the box body (1) is provided with an observation window (4). The color card (6) is located inside the limiting frame (7). The top of the color card (6) is connected to one end of the electromagnet (8), and the other end of the electromagnet (8) is attracted to the inner wall of the limiting frame (7). The protective plate (9) is connected to the limiting frame (7) through the connecting mechanism (10). The connecting mechanism (10) includes a slide (11) and a fixing block (1). 2) Limiting block (13), bearing (14), electric push rod (15) and limiting plate (16). The groove (11) is opened in the inner wall of the limiting frame (7). The side of the protective plate (9) extends into the groove (11). The limiting block (13) is fixedly connected to the outer wall of the front of the limiting frame (7). One end of the fixing block (12) is connected to the protective plate (9). The top of the fixing block (12) contacts the bottom of the limiting block (13). One end of the electric push rod (15) is connected to the fixing block (12) through the bearing (14). The other end of the electric push rod (15) is connected to one end of the limiting plate (16). The other end of the limiting plate (16) contacts the limiting block (13).

2. The rapid quantitative reagent kit for ammonia nitrogen according to claim 1, characterized in that: The box body (1) is provided with a handle (17) on the side. The handle (17) is fixedly connected to the side of the box body (1). There are two handles (17), and the two handles (17) are respectively located on both sides of the box body (1).

3. The rapid quantitative reagent kit for ammonia nitrogen according to claim 2, characterized in that: Several of the aforementioned support bases (5) are symmetrically arranged.

4. The rapid quantitative reagent kit for ammonia nitrogen according to claim 3, characterized in that: The electromagnet (8) is provided in two.

5. The rapid quantitative reagent kit for ammonia nitrogen according to claim 4, characterized in that: The observation window (4) is made of transparent tempered glass.

6. The rapid quantitative reagent kit for ammonia nitrogen according to claim 5, characterized in that: The groove (11) is matched with the protective plate (9).

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