A detection device capable of rapid determination
By integrating the capsule and capsule rupturer into the detection device, rapid detection of total hardness in water is achieved, solving the problem of cumbersome operation with multiple reagents in existing technologies, and improving detection efficiency and portability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAOXING KEQIAO ENVIRONMENTAL TECH SERVICE CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-06-05
AI Technical Summary
Existing methods for testing total hardness in water require carrying multiple reagents, are cumbersome to operate and inconvenient to carry, and cannot achieve real-time detection.
A detection device with built-in reagents was designed, including a reagent tube and a test tube cap. The test tube cap is equipped with a capsule and a capsule breaker. The capsule breaker is driven by a pressing part to make the reagent in the capsule flow into the reagent tube and mix with the water sample. Combined with a colorimetric card, rapid detection can be achieved.
It enables rapid detection of total hardness in water, simplifies operation, reduces the hassle of carrying reagents, avoids the impact of pre-mixing on detection results, and improves detection efficiency.
Smart Images

Figure CN224328061U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of detection devices, and in particular to the technical field of detection devices capable of rapid measurement. Background Technology
[0002] Total hardness in water refers to the total amount of calcium (Ca2+) and magnesium (Mg2+) ions in the water. These ions exist in the form of acid carbonates, sulfates, nitrates, and chlorides. Among them, calcium and magnesium ions in the form of acid carbonates will form carbonate precipitates when heated, which is called temporary hardness; while the part existing in the form of sulfates, nitrates, and chlorides is stable and is called permanent hardness.
[0003] Water hardness has a significant impact on daily life and industrial applications. my country's "Standards for Drinking Water Quality" (GB5749-2022) stipulates that the total hardness of drinking water (calculated as CaCO3) should not exceed 450 mg / L. This standard was determined based on a comprehensive consideration of factors such as protecting public health, local water quality conditions, and economic and technical feasibility. High-hardness water causes soap sludge to form when washing clothes, and scale to form on kettles and boilers when boiling water, affecting the lifespan and thermal conductivity of equipment. Long-term consumption of high-hardness water may cause gastrointestinal discomfort, while soft water has a low mineral content, and long-term consumption may lead to deficiencies in certain minerals. Therefore, the hardness of drinking water should be maintained within an appropriate range to ensure that the water quality is harmless to the human body and has a good taste.
[0004] Currently, the most common methods for testing total hardness involve on-site sampling followed by laboratory analysis. This process is cumbersome and cannot provide real-time updates on total hardness pollution in the water. Therefore, many testing personnel have begun to carry testing reagents directly to the site. However, this method requires carrying test tubes and various reagents, which is inconvenient and cumbersome, requiring on-site mixing of reagents and impacting work efficiency. Summary of the Invention
[0005] The purpose of this invention is to solve the problems in the prior art and to propose a detection device that can quickly measure reagents. The test tube can be filled with reagents, making it easy to carry and use.
[0006] To achieve the above objectives, this utility model proposes a detection device capable of rapid measurement, comprising a reagent tube, a test tube cap detachably connected to the opening of the reagent tube, a capsule on the side of the test tube cap near the reagent tube, the capsule being filled with reagent, and a capsule rupturer vertically positioned within the capsule for puncturing the capsule to allow the reagent to flow into the reagent tube; and a pressing part on the top of the test tube cap for cooperating with the capsule rupturer, the pressing part being connected to the capsule rupturer to drive the capsule rupturer.
[0007] Preferably, the test tube cap is made of an elastic material, and the pressing part is integrally formed with the test tube cap.
[0008] Preferably, the pressing part is provided to cover the top of the cyst rupture device.
[0009] Preferably, the test tube cap is also provided with a limiting ring that is detachably connected to it. The limiting ring is sleeved outside the pressing part and is used to limit the pressing part.
[0010] Preferably, the outer wall of the reagent tube is provided with a colorimetric card, one side of which is fixedly connected to the outer wall of the reagent tube, and the color levels on the colorimetric card are arranged along the axial direction of the reagent tube.
[0011] Preferably, the outer wall of the reagent tube is also provided with a plastic sealing film for wrapping the colorimetric card.
[0012] Preferably, the outer wall of the ruptured capsule is provided with several guide grooves arranged along its axial direction.
[0013] The beneficial effects of this invention's rapid testing device are as follows: This device can be used for the rapid detection of total hardness in water. By pre-setting reagents in the reagent tube and test tube cap, when testing is required, the capsule can be punctured directly to allow the reagent inside the capsule to flow out and into the reagent tube, where it mixes with the reagent in the test tube to test the water sample. This makes testing more convenient and enables rapid detection. All reagents are placed inside the testing device, eliminating the need to carry additional reagents, making it easy to carry. Furthermore, the two reagents can be stored separately to avoid pre-mixing and affecting the testing results.
[0014] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of a detection device capable of rapid measurement according to the present invention.
[0016] Figure 2 This is a front view cross-sectional structural diagram of a detection device capable of rapid measurement according to this utility model.
[0017] Figure 3 This is a schematic diagram of the front view cross-sectional structure of the test tube cap of a detection device capable of rapid measurement according to this utility model.
[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the pressing part of a detection device capable of rapid measurement according to this utility model after being pressed down.
[0019] Figure 5 This is a schematic diagram of the main structure of a second embodiment of the detection device of this utility model that can quickly measure.
[0020] Figure 6 This is a schematic diagram of the main cross-sectional structure of a second embodiment of the detection device of this utility model, which is capable of rapid measurement, when the plastic sealing film is applied.
[0021] Figure 7 This is a schematic diagram of the main cross-sectional structure of Embodiment 2 of the detection device of this utility model, which is capable of rapid measurement.
[0022] in:
[0023] 1-Reagent tube; 2-Test tube cap; 3-Limiting ring; 4-Colorimetric card; 5-Plastic seal; 21-Capsule body; 22-Capsule rupturer; 23-Pressing part; 221-Flow guide groove. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.
[0025] In the description of this utility model, it should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to or indirectly connected to the other element.
[0026] In the description of this utility model, it should be noted that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.
[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1
[0028] See Figures 1-4This utility model discloses a detection device capable of rapid determination, comprising a reagent tube 1 and a test tube cap 2 detachably connected to the reagent tube 1. The reagent tube 1 contains reagent ①. The test tube cap 2 has a capsule 21 on the side near the reagent tube 1, and the capsule 21 is filled with reagent ②. The capsule 21 also has a vertically positioned capsule breaker 22 for puncturing the capsule 21 to allow the reagent in the capsule 21 to flow into the reagent tube 1. The top of the test tube cap 2 has a pressing part 23 for cooperating with the capsule breaker 22. The pressing part 23 is connected to the capsule breaker 22 to drive the capsule breaker 22. The detection device of this embodiment can be used for rapid detection of total hardness in water. By pre-setting reagents in reagent tube 1 and test tube cap 2 respectively, when testing is required, the water sample is first added to reagent tube 1 to mix with reagent ① in reagent tube 1. Then, the capsule 21 is punctured directly through capsule breaker 22 to allow reagent ② in capsule 21 to flow out and into reagent tube 1, where it is mixed again. After the reaction is complete, colorimetric analysis can be performed to determine the total hardness in the water. The detection is more convenient and can achieve rapid detection. All reagents are placed in the detection device, eliminating the need to carry additional reagents, making it easy to carry. Furthermore, the two reagents can be stored separately to avoid premature mixing affecting the detection effect.
[0029] Specifically, reagent ① is a mixture of a pH 10 buffer solution and Eriochrome Black T indicator at a volume ratio of 10:1, with a mixed volume of 2 mL. Reagent ② is a disodium EDTA solution with a concentration of 10 mmol / L.
[0030] Specifically, the test tube cap 2 is made of an elastic material such as rubber, and the pressing part 23 is integrally formed with the test tube cap 2, with the pressing part 23 covering the top of the cyst rupture device 22. The integrally formed test tube cap 2 improves the sealing performance. The test tube cap 2 is made of an elastic material, and when the pressing part 23 is pressed, the test tube cap 2 can also deform accordingly, making it easier for the cyst rupture device 22 to pierce the cyst body 21 downwards.
[0031] See Figure 3 , Figure 4 The outer wall of the capsule rupturer 22 is provided with several guide grooves 221 arranged along its axial direction. When the capsule rupturer 22 punctures the capsule 21, the reagent inside the capsule 21 can flow out along the guide grooves 221, which facilitates the discharge of the reagent inside the capsule 21. Example 2
[0032] See Figure 6 , Figure 7 Based on Embodiment 1, to avoid accidental puncture of the bladder 21 due to pressure on the pressing part 23 during transportation, refer to... Figure 1The test tube cap 2 is also provided with a limiting ring 3 detachably connected to it. The limiting ring 3 is sleeved on the pressing part 23 and is used to limit the pressing part 23. When the limiting ring 3 is not removed, it can limit the pressing part 23 to prevent it from being pressed accidentally. When the limiting ring 3 is removed, the pressing part 23 can be pressed normally.
[0033] See Figure 5 , Figure 6 The reagent tube 1 has a colorimetric card 4 on its outer wall. One side of the colorimetric card 4 is fixedly connected to the outer wall of the reagent tube 1, and the colorimetric card 4 has 8 sets of color levels, which are arranged along the axial direction of the reagent tube 1. The colorimetric card 4 is directly set on the side wall of the reagent tube 1, which facilitates colorimetric comparison and portability.
[0034] See Figure 6 The outer wall of the reagent tube 1 is also provided with a plastic sealing film 5 for wrapping the colorimetric card 4. The plastic sealing film 5 is used to protect the colorimetric card 4 and prevent it from being damaged during transportation. When it is needed, the plastic sealing film 5 is torn open to unfold the colorimetric card 4.
[0035] The working process of this utility model:
[0036] This invention discloses a rapid detection device. During operation, 2 ml of reagent ① is pre-set in reagent tube 1, and 2 ml of reagent ② is pre-set in capsule 21. When testing is required, 10 ml of water sample is first added to reagent tube 1 to mix with reagent ①. Then, capsule 21 is punctured directly through capsule breaker 22 to allow reagent ② to flow out and into reagent tube 1. After mixing again and waiting for 5 minutes for color development, colorimetric analysis is performed to determine the total hardness value of the water sample. Dividing this value by the sample volume gives the concentration of total hardness. The maximum total hardness content measured from a 10 ml water sample is 250 mg / L. The sample volume can be appropriately reduced according to the amount of total hardness.
[0037] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The internal components of the electric slide rail, cylinder, welding machine, electric telescopic rod and controller all adopt conventional models in the existing technology, and their internal structure belongs to the existing technology structure. Workers can complete the normal operation of them according to the existing technical manual. In addition, the circuit connection adopts the conventional connection method in the existing technology, and will not be described in detail here.
[0038] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural or procedural transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of protection of this utility model patent.
Claims
1. A detection device capable of rapid determination, comprising a reagent tube (1), characterized in that: The reagent tube (1) has a test tube cap (2) detachably connected to its opening. The test tube cap (2) has a capsule (21) on one side near the reagent tube (1). The capsule (21) is filled with reagent. The capsule (21) is also provided with a vertically arranged capsule rupture device (22) for puncturing the capsule (21) so that the reagent in the capsule (21) flows into the reagent tube (1). The top of the test tube cap (2) has a pressing part (23) for cooperating with the capsule rupture device (22). The pressing part (23) is connected to the capsule rupture device (22) so that the capsule rupture device (22) can be driven by the pressing part (23).
2. The detection device capable of rapid measurement as described in claim 1, characterized in that: The test tube cap (2) is made of elastic material, and the pressing part (23) is integrally formed with the test tube cap (2).
3. The detection device capable of rapid measurement as described in claim 2, characterized in that: The pressing part (23) is positioned to cover the top of the rupture device (22).
4. The detection device capable of rapid measurement as described in claim 1, characterized in that: The test tube cap (2) is also provided with a limiting ring (3) that is detachably connected to it. The limiting ring (3) is sleeved on the outside of the pressing part (23) and is used to limit the pressing part (23).
5. The detection device capable of rapid measurement as described in claim 1, characterized in that: The reagent tube (1) has a colorimetric card (4) on its outer wall. One side of the colorimetric card (4) is fixedly connected to the outer wall of the reagent tube (1), and the color levels on the colorimetric card (4) are arranged along the axial direction of the reagent tube (1).
6. The detection device capable of rapid measurement as described in claim 5, characterized in that: The outer wall of the reagent tube (1) is also provided with a plastic sealing film (5) for wrapping the colorimetric card (4).
7. The detection device capable of rapid measurement as described in claim 1, characterized in that: The outer wall of the rupture device (22) is provided with several guide grooves (221) arranged along its axial direction.