Water sample extraction device for water conservancy project

Abstract

The utility model discloses a water sample extraction device for hydraulic engineering, which comprises a support component and a cover plate component, the cover plate component is movably connected with the support component, a filter component is fixed below the support component and comprises a filter cartridge, a plurality of filter holes are arranged on the outer wall of the filter cartridge, and the filter cartridge is fixedly connected with the support component. A plurality of isolation plates are fixedly mounted on the outer surface of the filter cartridge in the circumferential direction, a sampling barrel is movably connected below the filter cartridge, and the cover plate assembly extends into the filter cartridge and covers the sampling barrel. By arranging the filter cartridge and the isolation plate, large-size sundries such as aquatic plants and deadwood are isolated outside the filter cartridge, and the water body is filtered by the filter cartridge and then flows into the sampling barrel through the fine filter screen, so that the sundries can be efficiently filtered and blocked, and the detection accuracy of the sampled water body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water sample extraction for hydraulic engineering, in particular to a water sample extraction device for hydraulic engineering. Background Art

[0002] Water conservancy projects are projects built to control and allocate natural surface water and groundwater in order to achieve the purpose of eliminating harm and promoting benefits. Therefore, it is necessary to regularly extract water samples to monitor the water quality of rivers and other places.

[0003] The existing water sample extraction equipment includes a sampling cup and a side rod. Water inlet holes are opened on all sides of the sampling cup. A connecting mechanism is set between the side rod and the sampling cup. The sampling cup is fixed on the side rod through the connecting mechanism. When sampling the water body, it is only necessary to move the side rod to place the sampling cup in the water body at different depths. In this way, the water inlet hole is directly opened on the sampling cup. Some impurities in the water body, such as water plants, dead branches, garbage, etc., can easily be directly loaded into the sampling cup from the water inlet hole, causing pollution to the water sample and affecting the test results. Utility Model Content

[0004] The purpose of the utility model is to provide a water sample extraction device for water conservancy projects. By arranging a filter cylinder and an isolation plate, large-volume debris such as aquatic plants and dead branches are isolated outside the filter cylinder. After the filter cylinder filters the water body, it passes through a fine filter mesh again and then flows into the sampling cylinder. The debris can be efficiently filtered and blocked, thereby improving the detection accuracy of the sampled water body.

[0005] In order to solve the above technical problems, the utility model adopts the following solutions:

[0006] The present application provides a water sample extraction device for water conservancy projects, including a support assembly and a cover assembly. The cover assembly is movably connected to the support assembly. A filter assembly is fixed below the support assembly. The filter assembly includes a filter cartridge. A plurality of filter holes are provided on the outer wall of the filter cartridge. The filter cartridge is fixedly connected to the support assembly. A plurality of isolation plates are circumferentially fixedly installed on the outer surface of the filter cartridge. A sampling cartridge is movably connected below the filter cartridge. The cover assembly extends into the interior of the filter cartridge and covers the sampling cartridge.

[0007] In some optional embodiments, a slot is provided on the inner wall of the bottom end of the filter cartridge, and a fine filter is provided in the slot.

[0008] In some optional embodiments, an outer wall at the bottom end of the filter cartridge is provided with an outer thread, and an inner wall at the top end of the sampling cartridge is provided with an inner thread matching the outer thread, and the filter cartridge and the sampling cartridge are threadedly sleeved.

[0009] In some optional embodiments, the support assembly includes a support rod and a sleeve ring, the top end of the support rod is connected to an upper handle, the bottom end of the support rod is fixed to the outer wall of the sleeve ring, the bottom end of the sleeve ring is fixedly connected to the top end of the filter cartridge, and the cover plate assembly is movably connected to the support rod.

[0010] In some optional embodiments, a slide groove is provided on the top of the support rod along the length direction of the support rod, and the cover plate assembly includes a support plate, a movable plate, a cover plate and a connecting rod. One end of the movable plate passes through the slide groove and can slide in the slide groove. The support plate is fixedly connected to the support rod, and the bottom end of the connecting rod is fixedly installed on the top of the cover plate. The top end of the connecting rod passes through the support plate and is fixedly connected to the movable plate. A spring is sleeved on the outer wall of the connecting rod between the movable plate and the support plate, and both ends of the spring are respectively fixed on the movable plate and the support plate. The slide groove is opened on the support rod and above the support plate.

[0011] In some optional embodiments, the diameter of the filter cartridge matches the diameter of the cover plate.

[0012] In some optional embodiments, a lower handle is provided at one end of the movable plate passing through the slide slot, and the lower handle is arranged in parallel with the upper handle.

[0013] In some optional embodiments, a grip portion is provided at the bottom of the lower handle.

[0014] In some optional embodiments, the isolation plates are distributed in an annular shape along the circumference of the outer wall of the filter cartridge and are staggered with the filter holes.

[0015] Beneficial effects of the utility model:

[0016] The utility model discloses a water sample extraction device for water conservancy projects. By arranging a filter cylinder and an isolation plate, large-volume debris such as waterweed and dead branches are isolated outside the filter cylinder. After the water body is roughly filtered by the filter cylinder, it is filtered again from the fine filter screen and then flows into the sampling cylinder. The debris can be filtered and blocked efficiently, thereby improving the detection accuracy of the sampled water body.

[0017] In addition, in the present application, the sampling tube and the filter tube are movably connected. When sampling is needed, the lower handle is lifted upward to move the cover plate up, revealing the fine filter screen. After water enters from the filter hole, it is filtered again from the fine filter screen and flows into the sampling tube. When the sampling is completed, the cover plate moves downward to cover the sampling tube. Then, the sampling tube is unscrewed for detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a water sample extraction device provided in an embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the cross-sectional structure of a filter assembly provided in an embodiment of the utility model.

[0020] Description of reference numerals:

[0021] 1-filter assembly, 11-filter cartridge, 12-filter hole, 13-isolation plate, 14-fine filter screen, 2-sampling cartridge, 3-support rod, 31-slide groove, 32-upper handle, 4-sleeve ring, 5-support plate, 6-movable plate, 7-cover plate, 8-connecting rod, 9-spring, 10-lower handle. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0023] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0024] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed", "opened", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The present invention is described in detail below with reference to the accompanying drawings and in combination with embodiments:

[0026] Embodiment 1:

[0027] like Figure 1 to Figure 2 As shown, this embodiment provides a water sample extraction device for water conservancy projects, including a support assembly and a cover plate 7 assembly, the cover plate 7 assembly is movably connected to the support assembly, a filter assembly 1 is fixed below the support assembly, the filter assembly 1 includes a filter cartridge 11, a plurality of filter holes 12 are provided on the outer wall of the filter cartridge 11, the filter cartridge 11 is fixedly connected to the support assembly, a plurality of isolation plates 13 are circumferentially fixedly installed on the outer surface of the filter cartridge 11, a sampling cartridge 2 is movably connected below the filter cartridge 11, and the cover plate 7 assembly extends into the interior of the filter cartridge 11 and covers the sampling cartridge 2. The isolation plates 13 are annularly distributed along the circumferential outer wall of the filter cartridge 11, and are staggered with the filter holes 12.

[0028] Specifically, Figure 2 As shown, a card slot is provided on the inner wall of the bottom end of the filter cartridge 11, and a fine filter screen 14 is provided in the card slot. The fine filter screen 14 can perform secondary filtration on the water body, so that some small impurities are filtered out to avoid contamination of the sampled water body.

[0029] In order to facilitate the removal of the sampling tube 2 for testing, the sampling tube 2 and the filter tube 11 can be threadedly connected to facilitate the removal of the sampling tube 2. For example, an external thread is provided on the outer wall of the bottom end of the filter tube 11, and an internal thread matching the external thread is provided on the inner wall of the top end of the sampling tube 2, and the filter tube 11 and the sampling tube 2 are threadedly connected. In addition, a drain port can be provided at the bottom of the sampling tube 2, so that the water in the sampling tube 2 can be conveniently taken out when the water body needs to be tested.

[0030] In some optional embodiments, the support assembly includes a support rod 3 and a sleeve ring 4, the top of the support rod 3 is connected with an upper handle 32, the bottom of the support rod 3 is fixed to the outer wall of the sleeve ring 4, and can be fixed in an integral manner, the bottom of the sleeve ring 4 is fixedly connected to the top of the filter cartridge 11, and the cover plate 7 assembly is movably connected to the support rod 3. A slide groove 31 is provided on the top of the support rod 3 along the length direction of the support rod 3, the cover plate 7 assembly includes a support plate 5, a movable plate 6, a cover plate 7 and a connecting rod 8, one end of the movable plate 6 passes through the slide groove 31 and can slide in the slide groove 31, the support plate 5 is fixedly connected to the support rod 3, the bottom end of the connecting rod 8 is fixedly installed on the top of the cover plate 7, the top of the connecting rod 8 passes through the support plate 5 and is fixedly connected to the movable plate 6, a spring 9 is sleeved on the outer wall of the connecting rod 8 between the movable plate 6 and the support plate 5, and the two ends of the spring 9 are respectively fixed on the movable plate 6 and the support plate 5, and the slide groove 31 is opened on the support rod 3 and above the support plate 5.

[0031] In order to ensure that the cover plate 7 can pass through the sleeve ring 4 and the filter cartridge 11, the diameter of the cover plate 7 can be made slightly smaller than the inner diameters of the filter cartridge 11 and the sleeve ring 4, so that the diameter of the filter cartridge 11 matches the diameter of the cover plate 7, and the inner diameter of the sleeve ring 4 can be larger than the diameter of the filter cartridge 11 or the same as the diameter of the filter cartridge 11.

[0032] In order to facilitate the control of lifting the cover 7 or lowering it to cover the top of the sampling tube 2, a lower handle 10 is provided at one end of the movable plate 6 passing through the slide groove 31. The lower handle 10 and the upper handle 32 are arranged in parallel, and a gripping portion is provided at the bottom of the lower handle 10. The gripping portion is designed to fit the fingers and can be provided with an anti-slip protrusion for easy operation.

[0033] The usage process of this embodiment is as follows: when sampling is required, after placing the sampling tube 2 into the water at an appropriate depth, hold the upper handle 32 and the lower handle 10, and press the upper handle 32 to make the lower handle 10 drive the movable plate 6 to move upward in the slide groove 31, thereby making the connecting rod 8 drive the cover plate 7 to move upward. At this time, water can flow into the filter tube 11 from the filter holes 12 around the filter tube 11, and the isolation plate 13 and the filter holes 12 perform preliminary filtration on large-volume impurities. After the water enters the filter tube 11, it is filtered through the fine filter mesh 14 for secondary filtration to filter small impurities, and the filtered water flows into the sampling tube 2.

[0034] After sampling is completed, the lower handle 10 is released, and the spring 9's resilience drives the movable plate 6 to move downward along the slide groove 31, and then the connecting rod 8 drives the cover plate 7 to move downward until it is located at the bottom of the filter cylinder 11, and the fine filter 14 and the top of the sampling cylinder 2 are covered. When the sampling cylinder 2 needs to be removed, the sampling cylinder 2 can be separated from the filter cylinder 11 by simply unscrewing the sampling cylinder 2, which is convenient for disassembling the sampling cylinder 2. After the sampling cylinder 2 is removed, the fine filter 14 can also be cleaned or replaced to ensure the sampling quality.

[0035] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A water sample extraction device for water conservancy projects, characterized in that: The invention comprises a support assembly and a cover plate (7) assembly, wherein the cover plate (7) assembly is movably connected to the support assembly, a filter assembly (1) is fixed below the support assembly, the filter assembly (1) comprises a filter cartridge (11), a plurality of filter holes (12) are provided on the outer wall of the filter cartridge (11), the filter cartridge (11) is fixedly connected to the support assembly, a plurality of isolation plates (13) are circumferentially fixedly mounted on the outer surface of the filter cartridge (11), a sampling cartridge (2) is movably connected below the filter cartridge (11), and the cover plate (7) assembly extends into the interior of the filter cartridge (11) and is arranged above the sampling cartridge (2).

2. The water sample extraction device for water conservancy projects according to claim 1 is characterized in that: A slot is provided on the inner wall of the bottom end of the filter cartridge (11), and a fine filter screen (14) is provided in the slot.

3. The water sample extraction device for water conservancy projects according to claim 1 is characterized in that: An external thread is provided on the outer wall of the bottom end of the filter cartridge (11), and an internal thread matching the external thread is provided on the inner wall of the top end of the sampling cartridge (2). The filter cartridge (11) and the sampling cartridge (2) are threadedly sleeved.

4. The water sample extraction device for water conservancy projects according to claim 1 is characterized in that: The support assembly comprises a support rod (3) and a sleeve ring (4); the top end of the support rod (3) is connected to an upper handle (32); the bottom end of the support rod (3) is fixed to the outer wall of the sleeve ring (4); the bottom end of the sleeve ring (4) is fixedly connected to the top end of the filter cartridge (11); and the cover plate (7) assembly is movably connected to the support rod (3).

5. The water sample extraction device for water conservancy projects according to claim 4 is characterized in that: The top of the support rod (3) is provided with a slide groove (31) arranged along the length direction of the support rod (3); the cover plate (7) assembly comprises a support plate (5), a movable plate (6), the cover plate (7) and a connecting rod (8); one end of the movable plate (6) passes through the slide groove (31) and can slide in the slide groove (31); the support plate (5) is fixedly connected to the support rod (3); the bottom end of the connecting rod (8) is fixedly mounted on the top of the cover plate (7); the top end of the connecting rod (8) passes through the support plate (5) and is fixedly connected to the movable plate (6); a spring (9) is sleeved on the outer wall of the connecting rod (8) between the movable plate (6) and the support plate (5); the two ends of the spring (9) are respectively fixed on the movable plate (6) and the support plate (5); the slide groove (31) is penetrated and opened on the support rod (3) and above the support plate (5).

6. The water sample extraction device for water conservancy projects according to claim 5, characterized in that: The diameter of the filter cartridge (11) matches the diameter of the cover plate (7).

7. The water sample extraction device for water conservancy projects according to claim 5 is characterized in that: A lower handle (10) is provided at one end of the movable plate (6) passing through the slide groove (31), and the lower handle (10) and the upper handle (32) are arranged in parallel.

8. The water sample extraction device for water conservancy projects according to claim 7, characterized in that: A gripping portion is provided at the bottom of the lower handle (10).

9. The water sample extraction device for water conservancy projects according to claim 1, characterized in that: The isolation plates (13) are distributed in an annular shape along the circumference of the outer wall of the filter cartridge (11) and are arranged alternately with the filter holes (12).

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