Portable water quality sampling and detecting device
By using an air pump inside the mechanism to create negative pressure to extract water samples, and using a rotating ring and gear structure to hold disposable cups, the problem of existing devices being unable to quickly perform secondary sampling is solved, thus realizing a convenient water quality testing process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGTZE UNIVERSITY
- Filing Date
- 2025-07-18
- Publication Date
- 2026-05-15
AI Technical Summary
Existing portable water quality testing devices are difficult to use for quick secondary water sampling after the initial sampling, and cleaning them is also difficult, which may lead to sample contamination.
The system employs a combination of components such as a mechanism cylinder, connecting pipe, hose, disposable cup, sealing mechanism, mechanism base, detection component, dustproof plate, and air pump. It automatically extracts water samples by creating a negative pressure state using the air pump, and clamps the disposable cup by rotating the rotating ring and gear structure, facilitating quick cleaning and secondary sampling.
It enables convenient water sample extraction and rapid cleaning, ensuring that secondary sampling can be carried out quickly after the initial sampling, avoiding sample contamination, and is adaptable to cups of different sizes.
Smart Images

Figure CN224247392U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water quality testing technology, and in particular to a portable water quality sampling and testing device. Background Technology
[0002] A water quality sampler is a device used to insert into a body of water and collect water samples at a specific depth. The relevant values of the water sample can reflect the degree of water pollution to a certain extent, making it convenient to test the water quality.
[0003] Chinese patent document CN220568455U discloses a portable water quality testing and sampling device, relating to the field of water quality sampler technology. This utility model includes a sampling cylinder body, with a handle rotatably connected to the top of the outer surface of the sampling cylinder body. A water outlet pipe is fixedly connected to the outer surface of the sampling cylinder body, and a rubber tube is sleeved on the outer surface of the water outlet pipe. An auxiliary fastening device is provided on the outer surface of the rubber tube, comprising two auxiliary plates symmetrically arranged on the outer surface of the rubber tube. One side of each auxiliary plate is fixedly connected to the outer surface of the sampling cylinder body. This utility model, by setting two clamping plates, allows the clamping plates to move on the outer surface of the sampling cylinder body under the action of two threaded rods. This facilitates the adjustment of the clamping plates through the threaded rods, enabling the two clamping plates to clamp the outer surfaces of the rubber tube and the water outlet pipe tightly, thereby preventing gaps between the rubber tube and the water outlet pipe.
[0004] The existing technology has the following problems:
[0005] The device directly takes water from the bottom of the sampling cylinder, which makes it difficult to quickly take a second sample after the initial sampling. This is because the inside needs to be cleaned to prevent the initial sample from contaminating the second sample. At the same time, the bottom filter is also difficult to clean, which may result in incomplete cleaning and make it difficult to quickly take a second sample. Summary of the Invention
[0006] This invention provides a portable water quality sampling and testing device to solve the problems mentioned in the background art.
[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0008] A portable water quality sampling and testing device includes a mechanism cylinder, a connecting tube fixedly connected to the upper left side of the mechanism cylinder, a flexible tube fixedly connected to the inner side of the connecting tube, a disposable cup movably sleeved on the inner side of the mechanism cylinder, a closing mechanism movably sleeved on the upper outer side of the mechanism cylinder, and a fixing mechanism fixedly connected to the lower side of the mechanism cylinder.
[0009] The enclosed mechanism includes a mechanism base, the outer side of which is movably sleeved on the inner side of the mechanism cylinder near the upper side. A detection component is movably installed on the inner side wall of the mechanism base. Two dust-proof plates distributed vertically are movably sleeved on the inner side of the mechanism base. An air pump is movably sleeved on the inner side of the mechanism base and is located between the two dust-proof plates. An isolation plate is embedded in the upper middle part of the mechanism base, and the isolation plate is fixed to the mechanism base with screws.
[0010] Preferably, a plurality of annularly distributed movable rods are movably sleeved on the inner side of the bottom wall of the mechanism base, and a plurality of annularly distributed electromagnet rings are fixedly connected to the upper and lower sides of the inner side of the bottom wall of the mechanism base, with two sets of electromagnet rings distributed vertically. A circular plate is fixedly connected to the upper end of each of the movable rods, and the circular plate is located between the electromagnet rings. A sealing plate is fixedly connected to the lower side of the movable rod.
[0011] Preferably, a rotating sleeve is rotatably connected to the outer side of the mechanism base near the upper side, and several annularly distributed limiting grooves are opened on the outer side of the mechanism cylinder near the upper side. The protrusion on the inner side of the rotating sleeve near the bottom is slidably connected to the inner side of the limiting groove.
[0012] Preferably, a push rod is fixedly connected to the lower side of the mechanism seat near the left side.
[0013] Preferably, the fixing mechanism includes a base, the upper side of which is fixedly connected to the lower side of the mechanism cylinder. A rotating ring is rotatably connected to the bottom inner side of the base. A first gear is rotatably connected to the middle of the lower inner surface of the base. Two second gears, distributed left and right, are rotatably connected to the lower inner surface of the base, with the second gears located on both sides of the first gear. A first guide plate is fixedly connected to the upper side of the first gear. A second guide plate is fixedly connected to the inner side of the mechanism cylinder near the bottom. Several ring-shaped clamping rods are slidably connected to the inner side of the second guide plate. A gear ring is fixedly connected to the inner side of the base near the bottom.
[0014] Preferably, elastic clips are fixedly connected to the sides of the plurality of clamping rods that are close to each other.
[0015] Preferably, a plurality of annularly distributed ball seats are movably sleeved on the inner side of the bottom wall of the base, and springs are provided on the lower side of each ball seat. A plurality of annularly distributed ball grooves are provided on the lower side of the rotating ring near the edge.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] This utility model provides a portable water quality sampling and testing device. Based on the cooperation of a mechanism cylinder, connecting pipe, hose, disposable cup, sealing mechanism, mechanism base, detection component, dustproof plate, air pump, isolation plate, movable rod, sealing plate, electromagnet ring, circular plate, rotating sleeve, limiting groove and push rod, the air pump draws air into the mechanism cylinder to create a negative pressure state inside the mechanism cylinder, so that the hose automatically draws water and makes it fall into the inside of the disposable cup. Sampling is convenient and easy, and it is convenient to quickly clean the inside after the initial sampling and then perform a second sampling.
[0018] This utility model provides a portable water quality sampling and testing device. Based on the cooperation of a disposable cup, a fixing mechanism, a base, a rotating ring, a gear ring, a first gear, a second gear, a first guide plate, a second guide plate, clamping rods, a ball seat, a spring, a ball groove, and an elastic clamping piece, the device allows the clamping rods to move closer or further apart by rotating the rotating ring, thereby controlling the spacing between the clamping rods and enabling the elastic clamping piece to hold the disposable cup. The device is easy to operate and adjust, and can be easily adapted to disposable cups of different sizes. Attached Figure Description
[0019] Figure 1 This is a bottom-view three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a top-view three-dimensional structural diagram of the present invention;
[0021] Figure 3 This is a partial cross-sectional three-dimensional structural schematic diagram of the present invention;
[0022] Figure 4 This is a schematic diagram of the exploded three-dimensional structure of this utility model;
[0023] Figure 5 This is an exploded three-dimensional structural diagram of the mechanism seat portion of this utility model;
[0024] Figure 6 This utility model Figure 5 Enlarged structural diagram of part A in the middle;
[0025] Figure 7 This is a partial cross-sectional three-dimensional structural diagram of the fixing mechanism part of this utility model;
[0026] Figure 8 This utility model Figure 7 Enlarged structural diagram of part B in the middle.
[0027] In the diagram: 1. Mechanism cylinder; 2. Connecting pipe; 3. Hose; 4. Disposable cup; 5. Sealing mechanism; 51. Mechanism base; 52. Detection component; 53. Dustproof plate; 54. Air pump; 55. Isolation plate; 56. Push rod; 57. Movable rod; 58. Sealing plate; 59. Electromagnetic ring; 510. Circular plate; 511. Rotating sleeve; 512. Limiting groove; 6. Fixing mechanism; 61. Base; 62. Rotating ring; 63. Gear ring; 64. First gear; 65. Second gear; 66. First guide plate; 67. Second guide plate; 68. Clamping rod; 69. Ball seat; 610. Spring; 611. Ball groove; 612. Elastic clamping piece. Detailed Implementation
[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0029] like Figures 1-8 As shown, a portable water quality sampling and testing device includes a mechanism cylinder 1. A connecting pipe 2 is fixedly connected to the upper left side of the mechanism cylinder 1. A flexible tube 3 is fixedly connected to the inner side of the connecting pipe 2. A disposable cup 4 is movably sleeved on the inner side of the mechanism cylinder 1. A sealing mechanism 5 is movably sleeved on the upper outer side of the mechanism cylinder 1. A fixing mechanism 6 is fixedly connected to the lower side of the mechanism cylinder 1.
[0030] The sealing mechanism 5 includes a mechanism base 51. The outer side of the mechanism base 51 is movably sleeved on the inner side of the mechanism cylinder 1 near the upper side. A detection component 52 is movably installed on the inner side of the side wall of the mechanism base 51. Two dust-proof plates 53 distributed vertically are movably sleeved on the inner side of the mechanism base 51. An air pump 54 is movably sleeved on the inner side of the mechanism base 51 and is located between the two dust-proof plates 53. An isolation plate 55 is embedded in the upper middle part of the mechanism base 51 and is fixed to the mechanism base 51 with screws.
[0031] It should be noted that the detection component 52 is a common probe-type water quality detection structure, which is existing technology and will not be described in detail here. The isolation plate 55 is a perforated plate used to fix the dustproof plate 53 and prevent the dustproof plate 53 and the air pump 54 from falling off from the mechanism seat 51. The air pump 54 is used to evacuate air from the mechanism cylinder 1, so that a negative pressure is formed in the mechanism cylinder 1, which in turn causes the hose 3 to draw water into the disposable cup 4. There is a threaded pin on the connecting pipe 2 that moves up and down to fix the hose 3.
[0032] like Figure 5 , Figure 6As shown, a number of annularly distributed movable rods 57 are movably sleeved on the inner side of the bottom wall of the mechanism base 51. A number of annularly distributed electromagnet rings 59 are fixedly connected to the upper and lower sides of the inner side of the bottom wall of the mechanism base 51, and the electromagnet rings 59 are distributed in two groups. The upper ends of the movable rods 57 are all fixedly connected to circular plates 510, and the circular plates 510 are located between the electromagnet rings 59. A sealing plate 58 is fixedly connected to the lower side of the movable rods 57.
[0033] It should be noted that the mechanism base 51 is equipped with an attitude sensor to detect the attitude of the entire device. When it detects that it is tilting, the upper electromagnet ring 59 is energized to attract the circular plate 510, so that the sealing plate 58 seals the lower side of the mechanism base 51, preventing water samples from entering the mechanism base 51 and contacting the dustproof plate 53.
[0034] like Figure 4 , Figure 5 As shown, a rotating sleeve 511 is rotatably connected to the outer side of the mechanism base 51 near the upper side, and several annularly distributed limiting grooves 512 are opened on the outer side of the mechanism cylinder 1 near the upper side. The protrusion on the inner side of the rotating sleeve 511 near the bottom is slidably connected to the inner side of the limiting groove 512.
[0035] It should be noted that a torsion spring is provided between the rotating sleeve 511 and the mechanism seat 51 to stabilize the state of the rotating sleeve 511. The limiting groove 512 is L-shaped and relies on the protrusion inside the rotating sleeve 511 to fix the rotating sleeve 511 to the mechanism seat 51.
[0036] like Figure 5 As shown, a push rod 56 is fixedly connected to the lower side of the mechanism base 51 near the left side.
[0037] It should be noted that the push rod 56 pushes the hose 3 down, so that the hose 3 goes deep into the inside of the disposable cup 4, to prevent the hose 3 from tilting up and causing the water put into the hose 3 to enter the disposable cup 4.
[0038] like Figure 4 , Figure 7 As shown, the fixing mechanism 6 includes a base 61, the upper side of which is fixedly connected to the lower side of the mechanism cylinder 1. A rotating ring 62 is rotatably connected to the bottom inner side of the base 61. A first gear 64 is rotatably connected to the middle of the lower inner surface of the base 61. Two second gears 65, distributed left and right, are rotatably connected to the lower inner surface of the base 61, and the second gears 65 are located on both sides of the first gear 64. A first guide plate 66 is fixedly connected to the upper side of the first gear 64. A second guide plate 67 is fixedly connected to the inner side of the mechanism cylinder 1 near the bottom. Several ring-shaped clamping rods 68 are slidably connected to the inner side of the second guide plate 67. A gear ring 63 is fixedly connected to the inner side of the base 61 near the bottom.
[0039] It should be noted that the rotation range of the rotating ring 62 is slightly less than 180 degrees, which is used to create a connection between the base 61 and the mechanism cylinder 1. The gear ring 63 meshes with the second gear 65, and the second gear 65 meshes with the first gear 64. Rotating the rotating ring 62 drives the first gear 64 to rotate. When the first gear 64 rotates, it drives the first guide plate 66 to rotate. The first guide plate 66 is provided with an arc-shaped groove, and the second guide plate 67 is provided with a straight groove. The clamping rod 68 slides in both grooves at the same time, so that when the first guide plate 66 rotates, the clamping rod 68 moves closer or further away from each other.
[0040] like Figure 7 As shown, elastic clips 612 are fixedly connected to one side of several clamping rods 68 that are close to each other.
[0041] It should be noted that the elastic clip 612 is used to hold the disposable cup 4, avoiding the problem of unstable or excessive clamping caused by directly using the clamping rod 68.
[0042] like Figure 8 As shown, a number of annularly distributed ball seats 69 are movably sleeved on the inner side of the bottom wall of the base 61. Springs 610 are provided on the lower side of each ball seat 69. A number of annularly distributed ball grooves 611 are provided on the lower side of the rotating ring 62 near the edge.
[0043] It should be noted that the spring 610 pushes the ball seat 69 upward, causing the ball seat 69 to lock into the inside of the ball groove 611, thereby preventing the rotating ring 62 from rotating on its own after adjustment.
[0044] The working principle of this utility model is as follows: First, the detection component 52 is a common probe-type water quality detection structure, which is existing technology and will not be described in detail here. The isolation plate 55 is a perforated plate used to fix the dustproof plate 53, preventing the dustproof plate 53 and the air pump 54 from falling off from the mechanism base 51. The air pump 54 is used to evacuate air from the mechanism cylinder 1, creating a negative pressure inside the mechanism cylinder 1, which in turn causes the hose 3 to draw water into the disposable cup 4. There is a threaded pin on the connecting pipe 2 that moves up and down, used to fix the hose 3. The mechanism base 51 is equipped with an attitude sensor to detect the attitude of the entire device. When it detects a tilt, the upper electromagnet ring 59 is energized, attracting the circular plate 510. This causes the sealing plate 58 to seal the lower side of the mechanism base 51, preventing water samples from entering the mechanism base 51 and contacting the dustproof plate 53. The air pump 54 then evacuates air from the mechanism cylinder 1, creating a negative pressure state inside. This allows the hose 3 to automatically extract the water, which falls into the inside of the disposable cup 4. Sampling is convenient and easy. After the initial sampling, the interior is quickly cleaned and a second sampling is performed. Finally, the rotation of the rotating ring 62 is slightly less than 180 degrees to create a connection between the base 61 and the mechanism cylinder 1. The gear ring 63 meshes with the second gear 65, which in turn meshes with the first gear 64. Rotating the rotating ring 62 drives the first gear 64 to rotate, which in turn drives the first guide plate 66 to rotate. The first guide plate 66 has an arc-shaped groove, and the second guide plate 67 has a straight groove. (The text abruptly ends here, likely due to an incomplete sentence or missing information.) 68 slides simultaneously in the two slots, so that when the first guide plate 66 rotates, the clamping rods 68 move closer or further apart. The spring 610 pushes the ball seat 69 up, so that the ball seat 69 is locked inside the ball slot 611, thus avoiding the problem of the rotating ring 62 rotating on its own after adjustment. By rotating the rotating ring 62, the clamping rods 68 move closer or further apart, thereby controlling the distance between the clamping rods 68, so that the elastic clamping piece 612 clamps the disposable cup 4. The operation is convenient and the adjustment is convenient, making it easy to adapt to disposable cups 4 of different specifications.
[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A portable water quality sampling and testing device, comprising a mechanism cylinder (1), characterized in that: A connecting pipe (2) is fixedly connected to the left side of the mechanism tube (1) near the upper side. A flexible tube (3) is fixedly connected to the inner side of the connecting pipe (2). A disposable cup (4) is movably sleeved on the inner side of the mechanism tube (1). A closing mechanism (5) is movably sleeved on the outer side of the mechanism tube (1) near the upper side. A fixing mechanism (6) is fixedly connected to the lower side of the mechanism tube (1). The sealing mechanism (5) includes a mechanism seat (51), the outer side of which is movably sleeved on the inner side of the mechanism cylinder (1) near the upper side. A detection component (52) is movably installed on the inner side of the side wall of the mechanism seat (51). Two dust-proof plates (53) distributed vertically are movably sleeved on the inner side of the mechanism seat (51). An air pump (54) is movably sleeved on the inner side of the mechanism seat (51) and is located between the two dust-proof plates (53). An isolation plate (55) is embedded in the upper middle part of the mechanism seat (51). The isolation plate (55) is fixed to the mechanism seat (51) with screws.
2. The portable water quality sampling and testing device according to claim 1, characterized in that: The bottom wall of the mechanism base (51) is movably fitted with several annularly distributed movable rods (57). Several annularly distributed electromagnet rings (59) are fixedly connected to the upper and lower sides of the bottom wall of the mechanism base (51), and the electromagnet rings (59) are distributed in two groups. The upper ends of several movable rods (57) are fixedly connected with circular plates (510), and the circular plates (510) are located between the electromagnet rings (59). The lower side of the movable rods (57) is fixedly connected with sealing plates (58).
3. The portable water quality sampling and testing device according to claim 1, characterized in that: A rotating sleeve (511) is rotatably connected to the outer side of the mechanism base (51) near the upper side. Several annularly distributed limiting grooves (512) are opened on the outer side of the mechanism cylinder (1) near the upper side. The protrusion on the inner side of the rotating sleeve (511) near the bottom is slidably connected to the inner side of the limiting groove (512).
4. The portable water quality sampling and testing device according to claim 1, characterized in that: A push rod (56) is fixedly connected to the lower side of the mechanism base (51) near the left side.
5. The portable water quality sampling and testing device according to claim 1, characterized in that: The fixing mechanism (6) includes a base (61), the upper side of which is fixedly connected to the lower side of the mechanism cylinder (1). A rotating ring (62) is rotatably connected to the bottom inner side of the base (61). A first gear (64) is rotatably connected to the middle of the lower inner surface of the base (61). Two second gears (65) are rotatably connected to the lower inner surface of the base (61), and the second gears (65) are located on both sides of the first gear (64). A first guide plate (66) is fixedly connected to the upper side of the first gear (64). A second guide plate (67) is fixedly connected to the inner side of the mechanism cylinder (1) near the bottom. Several ring-shaped clamping rods (68) are slidably connected to the inner side of the second guide plate (67). A gear ring (63) is fixedly connected to the inner side of the base (61) near the bottom.
6. A portable water quality sampling and testing device according to claim 5, characterized in that: Each of the clamping rods (68) has an elastic clamping piece (612) fixedly connected to one side of each other.
7. A portable water quality sampling and testing device according to claim 5, characterized in that: The base (61) has several annularly distributed ball seats (69) movably sleeved on the inner side of its bottom wall. Each ball seat (69) has a spring (610) on its lower side. The rotating ring (62) has several annularly distributed ball grooves (611) on its lower side near the edge.