A filtering device for water sample detection

Abstract

The present invention discloses a filtering device for water sample detection, including a workbench, a rotating seat driven by a rotating power element is arranged on the workbench, a plurality of fixed seats are arranged in an annular manner on the rotating seat, and a collecting and filtering mechanism is closely matched on the fixed seat; a vacuum pump is also arranged on the rotating seat, and a connecting mechanism is arranged between the vacuum pump and the collecting and filtering mechanism; the present invention also includes a support frame arranged on the workbench, a buffer cup is arranged on the support frame, the buffer cup is arranged above the collecting and filtering mechanism and is connected to each other, the buffer cup is in a sealed connection state when it cooperates with the collecting and filtering mechanism, and the buffer cup is also connected to a water sample conveying mechanism. The use of the filtering device for water sample detection greatly improves the filtering speed of the water sample, effectively reduces the filtering time, has a strong continuity of the working rhythm, and has high working efficiency; at the same time, it ensures the effectiveness of water quality detection.

Description

Technical Field

[0001] The invention belongs to the technical field of auxiliary tools for water sample detection, and in particular relates to a filtering device for water sample detection. Background Art

[0002] At present, when testing the water samples collected, it is necessary to filter the heavy metals in the water samples first. At this stage, the filtering device for the water samples is to pour the water samples into a container, set a filter membrane structure at the bottom of the container, and place the container above a collection bottle. At this time, the water sample relies on gravity to filter through the filter membrane at the bottom, and the filtered water is collected through the collection bottle. The defects of using this filtering method are:

[0003] Natural filtration by gravity has a slow filtration speed and a long filtration time (testing work needs to be done every other day), which not only affects work efficiency and work rhythm, but also affects the effectiveness of water quality testing. Summary of the invention

[0004] The invention provides a filtering device for water sample detection, so as to achieve the purpose of improving work efficiency and ensuring the effectiveness of water quality detection.

[0005] In order to solve the above technical problems, the technical solution of the present invention is: a filtering device for water sample detection, comprising a workbench, a rotating seat driven by a rotating power element is provided on the workbench, a plurality of fixed seats are arranged in an annular manner on the rotating seat, and a collecting and filtering mechanism is tightly matched on the fixed seat;

[0006] The rotating seat is also provided with a vacuum pump, and a connecting mechanism is provided between the vacuum pump and the collecting and filtering mechanism;

[0007] It also includes a support frame arranged on the workbench, on which a cache cup is provided. The cache cup is arranged above the collecting and filtering mechanism and is interconnected. The cache cup is in a sealed connection state when cooperating with the collecting and filtering mechanism, and the cache cup is also connected to a water sample conveying mechanism.

[0008] As an improvement, the collection and filtering mechanism includes a collection cup arranged on the fixed seat and connected to the cache cup, a filter cup adapted to the inner wall of the collection cup is arranged in the collection cup, the filter cup and the cache cup are arranged correspondingly up and down, an annular support plate is arranged on the top of the filter cup, the annular support plate is overlapped on the top of the collection cup, and a filter element is provided on the filter cup.

[0009] As a further improvement, the annular support sheet is provided with a rubber ring which seals with the buffer cup.

[0010] As a further improvement, the communication mechanism comprises an arc-shaped protrusion provided on the collection cup and protruding from the outer wall of the collection cup, the protrusion is provided with a plurality of air holes, the air holes penetrate the wall thickness of the collection cup and communicate with the interior of the collection cup;

[0011] It also includes an air pipe connected to the vacuum pump and extending toward the protrusion. A sleeve is slidably mounted on the outer wall of the air pipe near one end of the collection cup. The sleeve is driven by a linear drive element. A sealing ring is provided between the sleeve and the air pipe. A sealing gasket is provided at the end of the sleeve and is adapted to the protrusion.

[0012] As a further improvement, the air hole is arranged higher than the filter element.

[0013] As a further improvement, the fixed seat includes a seat body arranged on the rotating seat, the seat body is provided with a positioning hole for positioning the collecting cup, and the seat body located in the positioning hole is provided with an elastic pad.

[0014] As a further improvement, a limit block is provided on the top of the seat body, and a stop block is protruding from the outer wall of the collection cup;

[0015] A photoelectric switch for detecting the collection cup is provided on the support frame at a position corresponding to the cache cup, and the photoelectric switch, the linear drive element and the rotary power element are all connected to the electronic control unit.

[0016] As a further improvement, the water sample conveying mechanism includes a water sample sealed container for containing water samples, the water sample sealed container is connected to a positive pressure air source, and a water supply pipe is provided between the water sample sealed container and the buffer cup.

[0017] As a further improvement, the top of the buffer cup is a closed structure, and the buffer cup is also connected to an air supply pipe, which is connected to the positive pressure air source.

[0018] As a further improvement, an annular sleeve ring is provided on the support frame, the buffer cup is configured as a frustum-shaped structure, and the buffer cup is clamped on the sleeve ring.

[0019] After adopting the above technical solution, the effects of the present invention are:

[0020] The filtering device for detecting water samples comprises a workbench, a rotating seat driven by a rotating power element is provided on the workbench, a plurality of fixed seats are arranged in a ring on the rotating seat, and a collecting and filtering mechanism is tightly matched on the fixed seat; a vacuum pump is also provided on the rotating seat, and a connecting mechanism is provided between the vacuum pump and the collecting and filtering mechanism; the filtering device also comprises a supporting frame provided on the workbench, a buffer cup is provided on the supporting frame, the buffer cup is provided above the collecting and filtering mechanism and is connected to each other, the buffer cup is in a sealed connection state with the collecting and filtering mechanism when matched, and the buffer cup is also connected to the water sample conveying mechanism. Based on the above structure, the filtering device for detecting water samples is During application, the water sample is transported to the cache cup through the water sample transport mechanism. When the rotating seat drives the collecting and filtering mechanism to be located directly below the cache cup and is in a sealed connection state, the vacuum pump begins to evacuate the interior of the collecting and filtering mechanism. The interior of the collecting and filtering mechanism is continuously in a vacuum state, which not only helps to quickly filter the water sample, but also can absorb the cache cup, helping to ensure the sealing between the collecting and filtering mechanism and the cache cup. Afterwards, the rotating seat drives the next collecting and filtering mechanism to correspond to the cache cup up and down, and performs water sample filtering, and the filtered water can be tested in time.

[0021] In summary, the use of the filtering device for water sample detection greatly improves the filtration speed of water samples, effectively reduces the filtration time, has a strong continuity of working rhythm and high work efficiency; at the same time, it ensures the effectiveness of water quality detection.

[0022] Since the collecting and filtering mechanism includes a collecting cup which is arranged on a fixed seat and connected to the buffer cup, a filter cup which is matched with the inner wall of the collecting cup is arranged in the collecting cup, the filter cup and the buffer cup are arranged correspondingly up and down, an annular support sheet is arranged on the top of the filter cup, the annular support sheet is overlapped on the top of the collecting cup, and a filter element is arranged on the filter cup. Therefore, during operation, when the water sample in the buffer cup enters the filter cup, the water sample is filtered through the filter element. The structure is simple, the water sample filtering effect is good, and the filter cup and the collecting cup are easy to cooperate with.

[0023] Since a rubber ring is provided on the annular support sheet to seal with the buffer cup, the rubber ring further improves the sealing effect between the buffer cup and the annular support sheet.

[0024] The connecting mechanism includes an arc-shaped protrusion which is arranged on the collecting cup and protrudes from the outer wall of the collecting cup, and a plurality of air holes are arranged on the protrusion, and the air holes penetrate the wall thickness of the collecting cup and are connected with the interior of the collecting cup; the connecting mechanism also includes an air pipe which is connected with the vacuum pump and extends toward the protrusion, and a sliding sleeve is slidably mounted on the outer wall of the air pipe near one end of the collecting cup, and the sliding sleeve is driven by a linear driving element, and a sealing ring is arranged between the sliding sleeve and the air pipe, and a sealing gasket is arranged at the end of the sliding sleeve and is matched with the protrusion, so that when vacuuming, the linear driving element drives the sliding sleeve to move toward the protrusion and makes the end of the sliding sleeve seal and cooperate with the protrusion, and then the vacuum pump works to vacuum the interior of the collecting cup through the interconnected air pipe, the sliding sleeve and the air holes, thereby providing a guarantee for the rapid filtration of water samples.

[0025] Since the air hole is arranged higher than the filter element, it can effectively prevent the filtered water from being sucked into the air pipe during the vacuuming process.

[0026] Since the fixed seat includes a seat body arranged on the rotating seat, the seat body is provided with a positioning hole for positioning the collection cup, and the seat body located in the positioning hole is provided with an elastic pad, so that the collection cup is constrained and positioned through the positioning hole, and the tightness of the fit between the seat body and the collection cup is ensured by the elastic pad. The structure is simple, the collection cup is easy to take and place, and the fixed fit effect is good.

[0027] Since a limit block is provided on the top of the seat body and a stop block is protruded on the outer wall of the collecting cup, the collection cup can be quickly and accurately positioned in the seat body through the cooperation of the limit block and the stop block, thereby ensuring the precise cooperation between the protrusion and the end of the sliding sleeve; since a photoelectric switch for detecting the collection cup is provided on the support frame at the position corresponding to the cache cup, the photoelectric switch, the linear drive element and the rotating power element are all connected to the electronic control unit, so that when the photoelectric switch detects the collection cup, the linear drive element drives the sliding sleeve to slide and cooperate with the protrusion, and then vacuuming and water filtering are carried out. The structure is simple, the work is orderly, and automated work is realized.

[0028] Since the water sample conveying mechanism includes a sealed water sample container for containing water samples, the sealed water sample container is connected to a positive pressure air source, and a water supply pipe is provided between the sealed water sample container and the buffer cup, positive pressure gas is introduced into the sealed water sample container through the positive pressure air source, and the water sample is delivered into the buffer cup through the water supply pipe. The structure is simple and the water sample conveying effect is good.

[0029] Since the top of the buffer cup is a closed structure, the buffer cup is also connected to an air supply pipe, which is connected to a positive-pressure air source. Thus, positive-pressure gas delivered into the buffer cup by the positive-pressure air source tests the water sample pressure, thereby increasing the speed at which the water sample flows into the filter cup.

[0030] Since an annular set ring is provided on the support frame, the buffer cup is set as a cone-shaped structure, and the buffer cup is clamped on the set ring, so that the buffer cup can be quickly installed on the support frame through the annular set ring and the cone-shaped buffer cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0032] Figure 1 It is a schematic diagram of the structure of the present invention;

[0033] Figure 2 yes Figure 1 A schematic diagram of the structure of the middle fixing seat, the collecting and filtering mechanism, the buffer cup and the connecting mechanism;

[0034] Figure 3 yes Figure 2 A top view of the middle collecting cup and the fixing seat;

[0035] Among them, 1-workbench; 101-rotating power element; 2-rotating seat; 3-fixed seat; 301-seat body; 302-positioning hole; 303-elastic pad; 304-limiting block; 305-stop block; 4-collecting and filtering mechanism; 401-collecting cup; 402-filtering cup; 403-annular supporting sheet; 404-filtering element; 405-rubber ring; 5-vacuum pump; 6-connecting mechanism; 601-bump; 602-air hole; 603-air pipe; 604-sleeve; 605-linear driving element; 606-sealing ring; 607-sealing pad; 7-support frame; 700-annular set ring; 701-photoelectric switch; 8-buffer cup; 800-water outlet; 801-air supply pipe; 9-water sample conveying mechanism; 901-water sample sealed container; 902-positive pressure air source; 903-water supply pipe. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below through specific examples.

[0037] like Figures 1 to 3As shown together, a filtering device for water sample detection includes a workbench 1, on which is provided a rotating seat 2 driven by a rotating power element 101 (such as a motor), on which are arranged a plurality of fixed seats 3 arranged in a ring array, on which are tightly fitted a collecting and filtering mechanism 4; on which is also provided a vacuum pump 5, a connecting mechanism 6 is provided between the vacuum pump 5 and the collecting and filtering mechanism 4; further comprising a support frame 7 arranged on the workbench 1, on which is provided a cache cup 8, which is arranged above the collecting and filtering mechanism 4 and is connected to each other, and which is in a sealed connection state when matched with the collecting and filtering mechanism 4, and which is also connected to a water sample conveying mechanism 9; in the present invention, the matching mechanism between the support frame 7 and the cache cup 8 is as follows: on the support frame 7 is provided an annular sleeve ring 700, the cache cup 8 is arranged as a frustum-shaped structure, and the cache cup 8 is clamped on the sleeve ring 700.

[0038] The collecting and filtering mechanism 4 includes a collecting cup 401 which is arranged on a fixing seat 3 and connected to a buffer cup 8. A filter cup 402 which matches the inner wall of the collecting cup 401 is arranged inside the collecting cup 401. The filter cup 402 and the buffer cup 401 are arranged correspondingly up and down. An annular support sheet 403 is arranged on the top of the filter cup 402. The annular support sheet 403 is overlapped on the top of the collecting cup 401. A filter element 404 (such as a filter membrane, etc.) is arranged on the filter cup 402. Preferably, a rubber ring 405 which seals with the buffer cup 8 is provided on the annular support sheet 403.

[0039] The communication mechanism 6 includes an arc-shaped protrusion 601 disposed on the collection cup 401 and protruding from the outer wall of the collection cup 401, and a plurality of air holes 602 are provided on the protrusion 601. The air holes 602 penetrate the wall thickness of the collection cup 401 and communicate with the interior of the collection cup 401. Preferably, the air holes 602 are arranged higher than the filter element 404; and also includes a metal air pipe 603 connected to the vacuum pump 5 and extending toward the protrusion 601. The air pipe 603 is close to the collection cup 401. A sliding sleeve 604 is provided on the outer wall of one end, and the sliding sleeve 604 is driven by a linear drive element 605 (such as a cylinder, etc.) arranged on the air pipe 603. A sealing ring 606 is provided between the sliding sleeve 604 and the air pipe 603. A sealing gasket 607 is provided at the end of the sliding sleeve 604 and is matched with the protrusion 601. In order to facilitate the sliding between the sliding sleeve 604 and the air pipe 603, the air pipe 603 and the sliding sleeve 604 are provided with matching sliding structures such as sliding blocks and sliding grooves.

[0040] The fixed seat 3 includes a seat body 301 arranged on the rotating seat 2, and a positioning hole 302 for positioning the collection cup 401 is provided on the seat body 301, and an elastic pad 303 is installed on the seat body 301 located in the positioning hole 302 through a card slot; a limit block 304 is provided on the top of the seat body 301, and a stop block 305 is protruding on the outer wall of the collection cup 401, so that the collection cup 401 can be quickly and accurately positioned in the seat body 301; a photoelectric switch 701 for detecting the collection cup 401 is provided on the support frame 7 at the corresponding position of the cache cup 8, and the photoelectric switch 701, the linear drive element and the rotating power element 101 are all connected to the electronic control unit.

[0041] The water sample conveying mechanism 9 includes a water sample sealed container 901 for containing water samples, the water sample sealed container 901 is connected to a positive pressure gas source 902, and a water supply pipe 903 is provided between the water sample sealed container 901 and the buffer cup 8; in this solution, the top of the buffer cup 8 is a closed structure, and a water outlet 800 is provided at the bottom, and the buffer cup 8 is also connected to an air supply pipe 801, and the air supply pipe 801 is connected to the positive pressure gas source 902. The above-mentioned embodiments are only descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Various modifications and changes made to the technical solution of the present invention without departing from the design spirit of the present invention should fall within the protection scope determined by the claims of the present invention.

Claims

1. A filtering device for water sample detection, characterized in that: It comprises a workbench, on which a rotating seat driven by a rotating power element is provided, on which a plurality of fixed seats are arranged in an annular manner, and on which a collecting and filtering mechanism is tightly matched; The rotating seat is also provided with a vacuum pump, and a connecting mechanism is provided between the vacuum pump and the collecting and filtering mechanism; It also includes a support frame arranged on the workbench, on which a cache cup is provided. The cache cup is arranged above the collecting and filtering mechanism and is interconnected. The cache cup is in a sealed connection state when cooperating with the collecting and filtering mechanism, and the cache cup is also connected to a water sample conveying mechanism.

2. The water sample detection filtering device according to claim 1, characterized in that: The collecting and filtering mechanism includes a collecting cup which is arranged on the fixing seat and connected to the buffer cup. A filtering cup which is adapted to the inner wall of the collecting cup is arranged in the collecting cup. The filtering cup and the buffer cup are arranged correspondingly up and down. An annular supporting sheet is arranged on the top of the filtering cup. The annular supporting sheet is overlapped on the top of the collecting cup. A filtering element is arranged on the filtering cup.

3. The water sample detection filtering device according to claim 2, characterized in that: The annular support sheet is provided with a rubber ring which seals with the buffer cup.

4. The water sample detection filtering device according to claim 3, characterized in that: The communication mechanism comprises an arc-shaped protrusion disposed on the collection cup and protruding from the outer wall of the collection cup, wherein the protrusion is provided with a plurality of air holes, and the air holes penetrate through the wall thickness of the collection cup and communicate with the interior of the collection cup; It also includes an air pipe connected to the vacuum pump and extending toward the protrusion. A sleeve is slidably mounted on the outer wall of the air pipe near one end of the collection cup. The sleeve is driven by a linear drive element. A sealing ring is provided between the sleeve and the air pipe. A sealing gasket is provided at the end of the sleeve and is adapted to the protrusion.

5. The water sample detection filtering device according to claim 4, characterized in that: The air hole is arranged higher than the filter element.

6. The water sample detection filtering device according to claim 5, characterized in that: The fixing seat comprises a seat body arranged on the rotating seat, a positioning hole for positioning the collecting cup is arranged on the seat body, and an elastic pad is arranged on the seat body located in the positioning hole.

7. The water sample detection filtering device according to claim 6, characterized in that: A limit block is provided on the top of the seat body, and a stop block is protruding from the outer wall of the collection cup; A photoelectric switch for detecting the collection cup is provided on the support frame at a position corresponding to the cache cup, and the photoelectric switch, the linear drive element and the rotary power element are all connected to an electronic control unit.

8. The water sample detection filtering device according to any one of claims 1 to 7, characterized in that: The water sample conveying mechanism comprises a water sample sealed container for containing water samples, the water sample sealed container is connected to a positive pressure air source, and a water delivery pipe is arranged between the water sample sealed container and the buffer cup.

9. The water sample detection filtering device according to claim 8, characterized in that: The top of the buffer cup is a closed structure, and the buffer cup is also connected to an air supply pipe, which is connected to the positive pressure air source.

10. The water sample detection filtering device according to claim 9, characterized in that: The support frame is provided with an annular sleeve ring, the buffer cup is configured as a frustum-shaped structure, and the buffer cup is clamped on the sleeve ring.

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