Portable water quality salinity detection box

Abstract

The utility model provides a portable water quality salinity detection box, which relates to the salinity detection field, and comprises a water storage box and a refractometer, the water storage box comprises a box body and an upper cover, the box body is used for containing liquid to be detected, the box body and the upper cover are both barrel-shaped structures, the outer side wall of the box body is provided with external threads, and the refractometer is arranged on the box body. External threads are arranged on the inner side wall of the box body, internal threads matched with the external threads are arranged on the inner side wall of the upper cover, the box body and the upper cover are connected in a screwed mode through the external threads and the internal threads, and a sealing piston is arranged at the lower end of the upper cover. The sealing piston can be driven to move up and down in the box body by rotating and screwing the upper cover, so that the salinity change of the to-be-detected liquid in the box body can be observed according to different air pressures, the use is convenient, the structure is small and exquisite, the carrying is convenient, and the production cost is low.

Description

Technical Field

[0001] This utility model relates to the field of salinity detection, specifically a convenient water salinity detection kit. Background Technology

[0002] A salinity meter is an instrument used to measure the concentration of salt solutions, salty foods, seawater, and brine. It can be used to detect the salinity of different liquids. A salinity meter with publication number CN209486029U is found, comprising a probe, a connecting rod, and a handle. The probe is connected to the handle via the connecting rod. The probe is characterized by having a head and a middle section located between the head and the connecting rod. The head of the probe is equipped with a temperature sensor, and the middle section of the probe is equipped with a conductivity sensor.

[0003] However, the above-mentioned technologies, which use probes to detect the salinity of liquids, cannot observe the changes in salinity caused by different pressures and temperatures. Utility Model Content

[0004] The problem this invention aims to solve is to facilitate observation of how the salinity of a liquid changes under different pressures.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is a portable water salinity testing box, including a water storage box and a refractometer. The water storage box includes a box body and a top cover. The box body is used to hold the liquid to be tested. Both the box body and the top cover are barrel-shaped structures. The outer side wall of the box body is provided with external threads, and the inner side wall of the top cover is provided with internal threads that match the external threads. The box body and the top cover are connected by screwing the external threads and internal threads. A sealing piston is provided at the lower end of the top cover. The sealing piston can enter the box body and form a sealed space inside the box body. The top cover can drive the sealing piston to move up and down inside the box body, thereby adjusting the air pressure inside the box body.

[0006] Even better, the lid and body of the water storage box are made of transparent polycarbonate.

[0007] Even better, the sealing piston is made of rubber, and the cross-section of the sealing piston is circular. The lower end of the sealing piston is hemispherical, and the upper end of the sealing piston is fixedly connected to the upper cover. Furthermore, the center of the sealing piston and the center of the upper cover are located on the same axis.

[0008] Even better, an insertion hole is provided at the center of the top cover. The insertion hole is circular, and a circular through hole is provided at the lower end of the sealing piston. The circular through hole is located at the lower end of the sealing piston and opens upward. After the sealing piston is passed through, it communicates with the insertion hole of the top cover. The refractometer can enter the circular through hole through the insertion hole.

[0009] Even better, the top of the cover is also equipped with anti-detachment clips. The anti-detachment clips are connected to both sides of the insertion hole. The anti-detachment clips can be flipped to the central axis position of the cover so that the two anti-detachment clips come into contact. A magnetic suction piece is provided at the joint between the two anti-detachment clips.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: By introducing a sealing piston into the box, a sealed space is formed inside the box. By rotating the top cover, the sealing piston can be moved up and down inside the box. When the sealing piston moves downward, it compresses the air inside the box. According to Boyle's Law, at constant temperature, the volume of a gas is inversely proportional to its pressure. Therefore, when the sealing piston moves downward, the air pressure inside the box increases. When the sealing piston moves upward, the air expands, thus decreasing the air pressure. This allows for observation of changes in the salinity of the liquid being tested inside the box based on different air pressures. It is convenient to use, has a compact structure that is easy to carry, and has low production costs. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0013] Figure 3 This is a schematic diagram of the right-side cross-sectional structure of this utility model;

[0014] Figure 4 This is a schematic diagram of the reset component structure of this utility model;

[0015] Figure 5 This is a schematic diagram of the limiting baffle structure of this utility model;

[0016] Among them, 1-refractometer, 2-box body, 3-top cover, 4-sealing piston, 5-insertion hole, 6-circular through hole, 7-anti-detachment clip, 8-magnetic suction piece, 9-external thread, 10-internal thread. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," and "rear," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to an electrical connection; they can refer to a hydraulic connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0020] like Figures 1 to 5As shown, a portable water salinity testing kit includes a water storage box and a refractometer 1. The water storage box is made of transparent polycarbonate (PC), which allows for better observation of the contents and facilitates light penetration to the refractometer 1. Sufficient light helps the user better observe the scale and boundaries on the refractometer 1, making it easier to distinguish the positions corresponding to different refractive indices and thus more accurately read the values. The water storage box is cylindrical and includes a body 2 and a cover 3. The body 2 holds the liquid to be tested. Both the body 2 and the cover 3 have a barrel-shaped structure. The outer wall of the body 2 has an external thread 9, and the inner wall of the cover 3 has an internal thread 10 that matches the external thread 9. The body 2 and the cover 3 are screwed together by the external thread 9 and the internal thread 10. A sealing piston 4, made of rubber, is installed in the cover 3. When connected, the sealing piston 4 is located inside the box 2, forming a sealed space with the box 2. The depth of the sealing piston 4 inside the box 2 can be adjusted through the connection of the internal thread 10 and the external thread 9, thereby regulating the air pressure inside the box 2. When the upper cover 3 is rotated to move downward, the upper cover 3 drives the sealing piston 4 to move downward inside the box 2, compressing the gas inside the box 2 and reducing its volume. According to Boyle's Law, at constant temperature, the gas volume is inversely proportional to the pressure. Therefore, when the upper cover 3 drives the sealing piston 4 to move downward inside the box 2, the air pressure inside the box 2 will increase. Conversely, when the upper cover 3 drives the sealing piston 4 to move upward inside the box 2, the air pressure inside the box 2 will decrease. Then, the change in salinity in the water under different air pressures is observed using a refractometer 1, thereby understanding how the salinity of different liquids changes under different air pressures, and thus better controlling and regulating the air pressure and salinity in the aquarium.

[0021] The sealing piston 4 has a circular cross-section, with its lower end hemispherical. The upper end of the sealing piston 4 is fixedly connected to the upper cover 3, and the center of the sealing piston 4 and the center of the upper cover 3 are on the same axis. An insertion hole 5, which is circular, is provided at the center of the upper cover 3. A circular through hole 6 is provided at the lower end of the sealing piston 4, opening upwards. The sealing piston 4 passes through this through hole and connects to the insertion hole 5 of the upper cover 3. The refractometer 1 enters the circular through hole 6 through the insertion hole 5. Because the sealing piston 4 is made of rubber, the refractometer... After being inserted into the circular through hole 6, it comes into close contact with the sealing piston 4, forming a sealed space inside the box 2. In order to prevent the refractometer 1 from being pushed out by air pressure due to pressure changes, an anti-detachment clip 7 is also provided on the top of the upper cover 3. The anti-detachment clip 7 is axially connected to both sides of the insertion hole 5. The anti-detachment clip 7 can be flipped to the central axis position of the upper cover 3, so that the two anti-detachment clips 7 come into contact. A magnetic suction piece 8 is provided at the joint between the two anti-detachment clips 7. The magnetic suction piece 8 prevents the two anti-detachment clips 7 from easily separating, so that the two anti-detachment clips 7 combine to limit the refractometer 1, preventing the refractometer 1 from moving upward.

[0022] In use, open the water storage box and fill it with the liquid to be tested through the box body 2, or drip the liquid into the box body 2 using a dropper. Then, screw the top cover 3 onto the box body 2. Tighten it a few times until the sealing piston 4 is inside the box body 2. Then, insert the refractometer 1 through the insertion hole 5 of the top cover 3 and the circular through hole 6 of the sealing piston 4, allowing the prism of the refractometer 1 to enter the box body 2 and be placed in the liquid to be tested. Then, flip the two anti-detachment clips 7 so that they adhere to each other through the magnetic suction piece 8, and the two anti-detachment clips 7 limit the movement of the refractometer 1. Then, the liquid to be tested inside the box 2 is observed and measured through the eyepiece of the refractometer 1. When it is necessary to change the air pressure inside the box 2, simply rotate the top cover 3 so that the top cover 3 moves the sealing piston 4 downward, so that the sealing piston 4 compresses the air inside the box 2. This facilitates the observation of salinity changes of different liquids under different pressure environments. Furthermore, the temperature of the liquid to be tested inside the box 2 can be changed by heating or cooling the box 2, thereby observing the salinity changes of different liquids at different temperatures. It is more compact and convenient to use, easy to carry and install, and has low production costs.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A portable water salinity testing kit, comprising a water storage box and a refractometer, characterized in that: The water storage box includes a box body and a top cover. The box body is used to hold the liquid to be tested. Both the box body and the top cover are barrel-shaped structures. The outer side wall of the box body is provided with external threads, and the inner side wall of the top cover is provided with internal threads that match the external threads. The box body and the top cover are connected by screwing on the external and internal threads. A sealing piston is provided at the lower end of the top cover. The sealing piston can enter the box body and can form a sealed space inside the box body. The top cover can drive the sealing piston to move up and down inside the box body, thereby adjusting the air pressure inside the box body.

2. The portable water salinity testing kit according to claim 1, characterized in that: The top cover and body of the water storage box are both made of transparent polycarbonate.

3. The portable water salinity testing kit according to claim 1, characterized in that: The sealing piston is made of rubber and has a circular cross-section. The lower end of the sealing piston is hemispherical, and the upper end of the sealing piston is fixedly connected to the upper cover. The center of the sealing piston and the center of the upper cover are located on the same axis.

4. The portable water salinity testing kit according to claim 1, characterized in that: An insertion hole is provided at the center of the upper cover. The insertion hole is circular. A circular through hole is provided at the lower end of the sealing piston. The circular through hole is located at the lower end of the sealing piston and opens upward. After the sealing piston is passed through, it communicates with the insertion hole of the upper cover. The refractometer can enter the circular through hole through the insertion hole.

5. A portable water salinity testing kit according to claim 4, characterized in that: The top of the cover is also provided with an anti-detachment clip, which is connected to both sides of the insertion hole. The anti-detachment clip can be flipped to the central axis position of the cover so that the two anti-detachment clips come into contact. A magnetic suction piece is provided at the joint between the two anti-detachment clips.

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