A drinking water sampling and detecting device for hydraulic engineering

Abstract

The utility model relates to water conservancy technical field, concretely relates to drinking water sampling detection equipment for water conservancy engineering, include: mount, drive component, drive component includes the slide rail of fixed in mount one side, sampling filter component, sampling filter component includes the sampling box of slide setting in one side of slide rail, the inner wall fixed mounting of sampling box has the baffle, the baffle will sampling box inside divide into filter water space and water storage space, the inside of baffle has the water inlet, the utility model discloses through sampling box sinking, water body directly enters filter water space, avoids the impurity through the baffle barrier and enters the water storage area, the gear rack linkage makes sampling box overturn in the process of rising, the air bag buoyancy cooperates spring and automatically opens the baffle, promotes the water body after filtering and unilaterally flows into the water storage space after the filter of the fence, this process completes the filtration and water storage in the lifting action in synchronization, avoids the secondary operation of artificial pollution water sample, guarantees the detection accuracy.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy technology, specifically to a drinking water sampling and testing device for water conservancy projects. Background Technology

[0002] Drinking water sampling and testing equipment is used to collect water samples from water sources and to test and analyze the water quality. The main purpose of this equipment is to ensure that the water quality meets drinking water standards and to guarantee the safety of drinking water for people. There are many types of existing sampling equipment. For example, a drinking water sampling and testing equipment for water conservancy projects disclosed in patent publication number CN221649974U is designed with a combination of anti-clogging components and pumping components. This design prevents duckweed and algae from clogging or getting tangled in the filter screen when the device is used to sample water bodies with a lot of duckweed and algae, thus making the water extraction smoother. The lifting component can drive the connecting bracket, anti-clogging component, and pumping component to move up and down, allowing the bottom of the device to smoothly enter the water body and perform sampling when sampling water bodies with a lot of duckweed and algae.

[0003] However, its opening and closing structure uses the rotation of the adjustment disc to push the cover plate to open and close the water inlet, but the gap between the cover plate and the guide groove cannot completely block fine suspended matter. When lifting the sample, bottom sediment particles seep back into the filter screen through the connecting port, resulting in a back-mixing rate of impurities in the water storage sample as high as 12% (especially in riverbed sampling scenarios). In addition, manual operation of the extension rod to adjust the lug requires repeated intervention, which increases the risk of volatile components escaping. Utility Model Content

[0004] To address the aforementioned shortcomings of existing technologies, this utility model provides a drinking water sampling and testing device for water conservancy projects, which can effectively solve the problem of high back-mixing rate of impurities in water storage samples caused by bottom sediment particles seeping back into the filter screen through the connecting port during sampling in existing technologies.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model provides a drinking water sampling and testing device for water conservancy projects, comprising:

[0007] Fixture;

[0008] A drive assembly, the drive assembly including a slide rail fixed to one side of a mounting frame;

[0009] A sampling and filtering assembly includes a sampling box slidably disposed on one side of a slide rail. A partition is fixedly installed on the inner wall of the sampling box, which divides the interior of the sampling box into a water filtration space and a water storage space. An inlet is provided inside the partition. A filter rail is fixedly installed on the lower end face of the partition at the position of the water inlet, and a baffle is slidably installed inside the filter rail.

[0010] Preferably, a threaded rod is rotatably mounted inside the slide rail, a drive rod is rotatably mounted inside the fixed frame, the lower end face of the drive rod passes through the slide rail and is fixedly connected to the threaded rod, a slider is slidably mounted on the inner wall of the slide rail, the slider is threadedly connected to the outer wall of the threaded rod, and a base plate is fixedly mounted on one side of the slide rail at a lower position.

[0011] Preferably, a drive shaft is fixedly and rotatably mounted on one side of the slider, a gear is sleeved on the outer wall of the drive shaft, a toothed plate is fixedly mounted on one side of the drive shaft, the toothed plate meshes with the gear, and one end of the drive shaft is fixedly connected to the sampling box.

[0012] Preferably, the sampling box is symmetrically equipped with slide bars on both sides, and an upper sealing slide plate and a lower sealing slide plate are slidably installed in the slide bars respectively. A handle is fixedly installed between the upper sealing slide plate and the lower sealing slide plate. The upper sealing slide plate, the lower sealing slide plate and the sampling box are airtightly slidably connected, and a one-way valve is embedded in the lower end face of the lower sealing slide plate.

[0013] Preferably, one end of the baffle passes through the sampling box and is fixedly installed with a U-shaped sliding plate. The U-shaped sliding plate is airtightly slidably connected to the sampling box. An external plate is fixedly installed on one side of the U-shaped sliding plate. An air tube is fixedly installed inside the external plate. Both ends of the air tube are connected to airbags.

[0014] Preferably, a square plate is symmetrically installed on one side of the sampling box, and a spring is fixedly installed between the square plate and the U-shaped sliding plate.

[0015] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0016] 1. When the sampling box sinks, the water directly enters the filtration space, and the baffle prevents impurities from entering the storage area; during the rising process, the gear and rack linkage causes the sampling box to flip, and the airbag buoyancy and spring automatically open the baffle, so that the filtered water flows into the storage space in one direction after being filtered by the baffle. This process completes filtration and water storage simultaneously during the lifting action, avoiding secondary manual operation that contaminates the water sample and ensuring the accuracy of the test.

[0017] 2. The screw rod is controlled by a single drive rod to raise and lower the slider, and the flipping mechanism and filter opening and closing device are linked synchronously. When the sampling box flips, the change in buoyancy of the air bag triggers the sliding of the baffle, which is then reset by the spring to form a closed-loop control. The mechanical self-locking design ensures that the filter baffle is only opened during the rising phase, which not only prevents impurities from clogging the filter screen when it sinks to the bottom, but also achieves effective separation of water samples and impurities, enhancing the adaptability of the equipment in complex water bodies. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the drive component of this utility model;

[0021] Figure 3 This is an exploded structural diagram of the sampling and filtering assembly of this utility model;

[0022] Figure 4 This is a cross-sectional view of the sampling and filtering assembly of this utility model.

[0023] Reference numerals: 1. Fixing frame; 2. Drive assembly; 201. Slide rail; 202. Threaded rod; 203. Drive rod; 204. Base plate; 205. Slider; 3. Sampling and filtering assembly; 301. Drive shaft; 302. Sampling box; 303. Gear; 304. Toothed plate; 305. Slide bar; 306. Upper sealing slide plate; 307. Handle; 308. Lower sealing slide plate; 309. One-way valve; 310. Partition plate; 311. Inlet; 312. Filter partition; 313. Baffle; 314. U-shaped sliding plate; 315. External plate; 316. Air pipe; 317. Airbag; 318. Square plate; 319. Spring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] The present invention will be further described below with reference to the embodiments.

[0026] Example: Refer to Figures 1 to 4 A drinking water sampling and testing device for water conservancy projects, comprising:

[0027] Fixture 1;

[0028] Drive assembly 2, which includes a slide rail 201 fixed to one side of the fixed frame 1;

[0029] The sampling and filtering assembly 3 includes a sampling box 302 that is slidably disposed on one side of the slide rail 201. A partition 310 is fixedly installed on the inner wall of the sampling box 302, which divides the interior of the sampling box 302 into a water filtration space and a water storage space. An inlet 311 is provided inside the partition 310. A filter baffle 312 is fixedly installed on the lower end face of the partition 310 at the position of the inlet 311. A baffle 313 is slidably installed inside the filter baffle 312.

[0030] Reference Figures 1 to 2 A threaded rod 202 is rotatably installed inside the slide rail 201, and a drive rod 203 is rotatably installed inside the fixed frame 1. The lower end face of the drive rod 203 passes through the slide rail 201 and is fixedly connected to the threaded rod 202. A slider 205 is slidably installed on the inner wall of the slide rail 201. The slider 205 is threadedly connected to the outer wall of the threaded rod 202. A base plate 204 is fixedly installed on one side of the slide rail 201 at a lower position.

[0031] Reference Figures 3 to 4 A drive shaft 301 is fixedly and rotatably mounted on one side of the slider 205. A gear 303 is sleeved on the outer wall of the drive shaft 301. A toothed plate 304 is fixedly mounted on one side of the drive shaft 301. The toothed plate 304 meshes with the gear 303. One end of the drive shaft 301 is fixedly connected to the sampling box 302.

[0032] Reference Figures 3 to 4 The sampling box 302 is symmetrically equipped with sliding strips 305 on both sides. An upper sealing slide plate 306 and a lower sealing slide plate 308 are slidably installed within the sliding strips 305. A handle 307 is fixedly installed between the upper and lower sealing slide plates 306 and 308. The upper and lower sealing slide plates 306 and 308 are airtightly connected to the sampling box 302. A one-way valve 309 is embedded in the lower end face of the lower sealing slide plate 308. Rotating the drive rod 203 causes the threaded rod 202 to rotate, driving the slider 205 to move downwards along the slide rail 201, causing the sampling box 302 to sink into the water. At this time, the baffle 313, under the tension of the spring 319, closes the filter barrier 312, and water only enters the filtration space through the one-way valve 309 of the lower sealing slide plate 308. The baffle 310 prevents water from flowing into the water storage space.

[0033] Reference Figures 3 to 4 One end of the baffle 313 passes through the sampling box 302 and is fixedly installed with a U-shaped sliding plate 314. The U-shaped sliding plate 314 is airtightly slidably connected to the sampling box 302. An external plate 315 is fixedly installed on one side of the U-shaped sliding plate 314. An air pipe 316 is fixedly installed inside the external plate 315. The two ends of the air pipe 316 are connected to air bladders 317. When flipped, the water in the high-position air bladder 317 flows into the low-position air bladder 317 through the air pipe 316. The change in buoyancy precisely pushes the U-shaped sliding plate 314 to open the baffle 313. This design uses the gravity transfer of the water body itself to trigger the mechanical action, without the need for external sensor control, avoiding the risk of underwater failure of electronic components, and significantly enhancing the reliability of the equipment in turbid or low-temperature water.

[0034] Reference Figures 3 to 4 A square plate 318 is symmetrically installed on one side of the sampling box 302. A spring 319 is fixedly installed between the square plate 318 and the U-shaped sliding plate 314. When the drive rod 203 is rotated in the opposite direction, the sampling box 302 is lifted. The slider 205 moves upward and drives the toothed plate 304 to mesh with the gear 303, forcing the transmission shaft 301 to flip the sampling box 302 (180°). After flipping, the airbag 317 rises to the top. The water inside flows into the lower airbag 317 through the air pipe 316. The buoyancy pushes the U-shaped sliding plate 314 to drive the baffle 313 to slide open the filter partition 312. The water in the filter space flows into the water storage space in one direction through the filter partition 312. The spring 319 stores energy when the baffle 313 is opened. After the sampling box 302 is reset, the spring 319 automatically pulls back the baffle 313 to close the filter partition 312, completing the self-locking.

[0035] The meshing of the toothed plate 304 and the gear 303 strictly limits the flipping action to only occur during the lifting stage, ensuring that the baffle 313 is always closed when sinking; the spring 319 is compressed and stores energy when the baffle 313 is opened, and automatically resets the baffle 313 and seals the filter barrier 312 after sampling. This mechanical closed-loop design completely isolates secondary pollution from impurities, and is especially suitable for river water sources containing suspended solids.

[0036] The working principle of this utility model is as follows:

[0037] Place the mounting frame 1 at the location where sampling is required, rotate the drive rod 203 to drive the threaded rod 202 to rotate, and the threaded rod 202 drives the slider 205 to slide and descend within the slide rail 201 during rotation. The slider 205 drives the sampling filter assembly 3 to descend into the water where sampling is required. The set base plate 204 can contact the bottom of the water to ensure the stability of the mounting frame 1 and the drive assembly 2.

[0038] After the sampling box 302 is driven down into the water, water enters the filtration space through the one-way valve 309. The inlet 311 is blocked, preventing water from flowing into the storage space. Once the filtration space is full, the drive rod 203 is rotated in the reverse direction, causing the sampling box 302 to move upwards in the water. As the slider 205 moves upwards along with the sampling box 302, it drives the gear 303 to mesh with the toothed plate 304, causing the drive shaft 301 to move the sampling box. 302 rotates, changing from a downward filtration space to an upward filtration space. Air inside the airbag 317 flows through the air tube 316 into the upward-rotating airbag 317, generating buoyancy. This buoyancy causes the outer plate 315, the U-shaped sliding plate 314, and the baffle 313 to slide within the filter partition 312. At this time, the water sampled from the filtration space is filtered through the filter partition 312 and enters the water storage space. Filtration through the filter partition 312 effectively removes impurities from the water, maintaining its cleanliness.

[0039] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A drinking water sampling and testing device for water conservancy projects, characterized in that, include: Fixture (1); The drive assembly (2) includes a slide rail (201) fixed to one side of the mounting bracket (1); The sampling and filtering assembly (3) includes a sampling box (302) slidably disposed on one side of the slide rail (201). A partition (310) is fixedly installed on the inner wall of the sampling box (302). The partition (310) divides the interior of the sampling box (302) into a water filtration space and a water storage space. An inlet (311) is provided inside the partition (310). A filter baffle (312) is fixedly installed on the lower end face of the partition (310) at the position of the inlet (311). A baffle (313) is slidably installed inside the filter baffle (312).

2. The drinking water sampling and testing equipment for water conservancy projects according to claim 1, characterized in that, A threaded rod (202) is rotatably installed inside the slide rail (201), and a drive rod (203) is rotatably installed inside the fixing frame (1). The lower end face of the drive rod (203) passes through the slide rail (201) and is fixedly connected to the threaded rod (202). A slider (205) is slidably installed on the inner wall of the slide rail (201). The slider (205) is threadedly connected to the outer wall of the threaded rod (202). A base plate (204) is fixedly installed on one side of the slide rail (201) at a lower position.

3. The drinking water sampling and testing equipment for water conservancy projects according to claim 2, characterized in that, A drive shaft (301) is fixedly and rotatably mounted on one side of the slider (205). A gear (303) is sleeved on the outer wall of the drive shaft (301). A toothed plate (304) is fixedly mounted on one side of the drive shaft (301). The toothed plate (304) meshes with the gear (303). One end of the drive shaft (301) is fixedly connected to the sampling box (302).

4. The drinking water sampling and testing equipment for water conservancy projects according to claim 3, characterized in that, The sampling box (302) is symmetrically equipped with slide bars (305) on both sides. The upper sealing slide plate (306) and the lower sealing slide plate (308) are slidably installed in the slide bars (305). A handle (307) is fixedly installed between the upper sealing slide plate (306) and the lower sealing slide plate (308). The upper sealing slide plate (306), the lower sealing slide plate (308) and the sampling box (302) are airtightly slidably connected. A one-way valve (309) is embedded in the lower end face of the lower sealing slide plate (308).

5. The drinking water sampling and testing equipment for water conservancy projects according to claim 4, characterized in that, One end of the baffle (313) passes through the sampling box (302) and is fixedly installed with a U-shaped sliding plate (314). The U-shaped sliding plate (314) is airtightly slidably connected to the sampling box (302). An external plate (315) is fixedly installed on one side of the U-shaped sliding plate (314). An air tube (316) is fixedly installed inside the external plate (315). Both ends of the air tube (316) are connected to an airbag (317).

6. The drinking water sampling and testing equipment for water conservancy projects according to claim 5, characterized in that, A square plate (318) is symmetrically installed on one side of the sampling box (302), and a spring (319) is fixedly installed between the square plate (318) and the U-shaped sliding plate (314).

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