Water sample extraction device for hydraulic engineering monitoring

Abstract

The utility model relates to the technical field of water conservancy project monitoring, in particular to a water sample extraction device for water conservancy project monitoring, which comprises two fixed plates, an extraction mechanism for extracting a water sample at a fixed distance is arranged between the opposite sides of the two fixed plates, and an opening and closing mechanism for opening and closing the extraction device for sampling at a fixed distance position is arranged on the inner wall of the extraction mechanism. According to the water sample extraction device for hydraulic engineering monitoring, through mutual cooperation of the extraction mechanism, the opening and closing mechanism and the like, a sliding sleeve can slide on the outer side of a sliding rod, so that the water sample extraction device can be conveniently moved to different depths of a water source for fixed-distance sampling; a user pulls a connecting pipe to push a moving cylinder to slide on the outer side of a sliding rod through the connecting pipe, so that the moving cylinder can be moved to a proper depth in a water source, and after the moving cylinder is moved to a specified depth in the water source, when an opening and closing cover rotates and corresponds to a water inlet in the outer side of the moving cylinder, the opening and closing cover rotates; a water inlet channel is formed, so that a water source enters a sampling pipe in the movable cylinder, and the purpose of fixed-distance sampling is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of water conservancy project monitoring, and in particular to a water sampling device for water conservancy project monitoring. Background Art

[0002] To collect water samples from polluted water bodies, water sample testing equipment will be installed at water conservancy stations or gates of some water conservancy projects. The basic data of water pollution can be obtained through water source analysis from water sample extraction. The sampling method, location, time, number of times, etc. are all determined according to the characteristics of the water body and the purpose of analysis. When collecting water samples, water samples can be extracted through a suction pipe, and the extracted water samples can be placed in the testing instrument for inspection, and the water body standards can be determined based on the test data.

[0003] As disclosed in Chinese Patent Publication No. (CN220084408U), a water sampling device for monitoring water conservancy projects comprises a fixed tube and a fixed seat, the top end of the fixed tube is threadedly connected to the bottom end of the fixed seat, a threaded rod runs through the middle of the fixed seat, a water container is provided inside the fixed tube and in the middle of the threaded rod, and the middle of the water container is threadedly connected to the threaded rod; the water sampling device for monitoring water conservancy projects described in the utility model, through the lifting of the water container, the second rubber ring of the floating seat cleans the inner wall of the fixed tube, so that the moss or silt attached to the inner wall of the fixed tube can be cleaned, thereby ensuring that the sampled water source detection data is more accurate, the swing block is pushed under the action of the second telescopic spring, and the second rubber ring that cleans the inner wall of the fixed tube is thrown out, and the sewage flows away to reduce the impact on the water quality of the sampling point, and the swing block can be reset by the guide plate, and the rubber ring can be installed and then sampled again.

[0004] However, as in the above patent, there is still a problem of poor effect of fixed-distance sampling of water samples in water conservancy project monitoring. For example, in the above patent, water samples are extracted by driving a water cylinder into the water source through a threaded rod and sampling through the water cylinder. However, the pollution sources in water source pollution include various substances, and the density of various pollution sources is different, and different pollution layers will appear in the water source. The sampling method in the above patent will cause the pollution sources of various layers in the sample to be mixed together, which is not convenient for rapid and accurate judgment of the polluted water layer for precise monitoring. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present application provides a water sampling device for water conservancy project monitoring, which has the advantages of extracting water samples at a fixed distance, and solves the problem of poor effect of fixed-distance sampling of water samples in water conservancy project monitoring.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a water sampling device for monitoring a water conservancy project, comprising two fixed plates, an extraction mechanism for extracting water samples at a fixed distance is provided between opposite sides of the two fixed plates, and an opening and closing mechanism for opening and closing the extraction device at a fixed distance position for sampling is provided on the inner wall of the extraction mechanism;

[0007] The extraction mechanism includes two sliding rods, two sliding sleeves, a moving cylinder and a sampling member, the two sliding rods are respectively fixed between opposite sides of the two fixing plates, the two sliding sleeves are respectively slidably connected to the outer sides of the two sliding rods, the moving cylinder is fixed between opposite sides of the two sliding sleeves, and the sampling member is arranged on the inner wall of the moving cylinder to take and place the water sample;

[0008] The opening and closing mechanism includes an opening and closing cover, a connecting pipe, an adjusting rod and a hand wheel. The opening and closing cover is rotatably connected to the inner wall of the moving cylinder, the connecting pipe is fixed to the upper surface of the moving cylinder, the adjusting rod is rotatably connected to the inner wall of the connecting pipe, and the hand wheel is fixed to the top end of the adjusting rod.

[0009] By adopting this technical solution, a sampling rack is formed by a sliding rod and a fixed plate. The sliding sleeve slides on the outside of the sliding rod to drive the moving cylinder to perform vertical linear movement, so as to move to different depths of the water source for fixed-distance sampling.

[0010] Furthermore, the sampling member includes a threaded bottom cover and a sampling tube, a threaded hole is opened on the inner bottom wall of the movable cylinder, and the threaded bottom cover is threadedly connected to the inner wall of the threaded hole, and the sampling tube is placed on the inner wall of the threaded bottom cover.

[0011] By adopting this technical solution, the threaded bottom cover and the moving cylinder are threadedly installed, so that the sampling tube is driven by the moving cylinder to extract water samples in the water source.

[0012] Furthermore, a plurality of water inlets are provided on the side of the opening and closing cover opposite to the moving cylinder.

[0013] By adopting this technical solution, when the opening and closing cover rotates and the position of the water inlet on the outside of the moving cylinder corresponds, it generates a water inlet channel to allow water to enter the sampling tube in the moving cylinder. During the moving and placing process, the opening and closing cover is rotated to stagger the position of the water inlet to avoid water from entering and achieve the purpose of fixed-distance sampling.

[0014] Furthermore, a rotation hole is provided on the inner top wall of the movable cylinder, and the adjusting rod is rotatably connected to the inner wall of the rotation hole.

[0015] By adopting this technical solution, when sampling, the user can pull the connecting tube to push the moving tube to slide on the outside of the sliding rod through the connecting tube to move it to a suitable depth in the water source.

[0016] Furthermore, a leak-proof cover plate is fixed to the lower surface of the threaded bottom cover.

[0017] By adopting this technical solution, the gap can be filled by the leak-proof cover plate in conjunction with the threaded bottom cover to prevent water from entering the bottom of the moving cylinder.

[0018] Furthermore, a test tube base is fixed to the inner wall of the threaded bottom cover, and the sampling tube is placed on the inner wall of the test tube base.

[0019] By adopting this technical solution, before sampling, placing a clean sampling tube into the threaded bottom cover can facilitate the separation between the sampling tube and the device, and the sample can be transported for detection.

[0020] Furthermore, a sealing ring is fixed to the inner wall of the connecting pipe, and the adjusting rod is rotatably connected to the inner wall of the sealing ring.

[0021] By adopting this technical solution, the adjusting rod is rotated and connected in the connecting pipe to drive the opening and closing cover to rotate on the inner periphery of the moving cylinder.

[0022] Furthermore, the length of the adjusting rod is greater than the length of the connecting pipe, and the outer diameter of the opening and closing cover is equal to the inner diameter of the moving cylinder.

[0023] By adopting this technical solution, after moving to a specified depth in the water source, the hand wheel can be rotated to drive the adjusting rod and the opening and closing cover to rotate in a circle in the moving cylinder.

[0024] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0025] The water sampling device for monitoring water conservancy projects, by setting up the mutual cooperation between the extraction mechanism and the opening and closing mechanism, can drive the moving tube to perform vertical linear movement through the sliding sleeve sliding on the outside of the sliding rod, so as to be moved to different depths of the water source for fixed-distance sampling. When sampling, the user can pull the connecting pipe to push the moving tube to slide on the outside of the sliding rod through the connecting pipe to move it to a suitable depth in the water source. After moving to the specified depth in the water source, when the opening and closing cover rotates and the opening and closing cover corresponds to the water inlet position on the outside of the moving tube, it generates a water inlet channel to allow the water source to enter the sampling tube in the moving tube, thereby achieving the purpose of fixed-distance sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of this application;

[0027] Figure 2 This is the main view of the structure of this application;

[0028] Figure 3 A schematic diagram of the sampling institutions for this application;

[0029] Figure 4 This is a schematic diagram of the opening and closing mechanism of this application.

[0030] In the figure: 1. fixed plate; 2. extraction mechanism; 21. sliding rod; 22. sliding sleeve; 23. moving cylinder; 24. sampling piece; 241. threaded bottom cover; 242. sampling tube; 243. leak-proof cover; 3. opening and closing mechanism; 31. opening and closing cover; 32. connecting pipe; 33. adjusting rod; 34. hand wheel; 35. water inlet. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] See also Figure 1-2 In this embodiment, a water sampling device for water conservancy project monitoring includes two fixed plates 1, and an extraction mechanism 2 for extracting water samples at a fixed distance is provided between the opposite sides of the two fixed plates 1. The inner wall of the extraction mechanism 2 is provided with an opening and closing mechanism 3 for opening and closing the extraction device at a fixed distance position for sampling.

[0033] See also Figure 3 In order to extract water samples at a fixed distance for water conservancy projects, the extraction mechanism 2 in this embodiment includes two sliding bars 21, two sliding sleeves 22, a moving cylinder 23 and a sampling piece 24. The two sliding bars 21 are respectively fixed between the opposite sides of the two fixed plates 1, and the two sliding sleeves 22 are respectively slidably connected to the outer sides of the two sliding bars 21. The moving cylinder 23 is fixed between the opposite sides of the two sliding sleeves 22. The sliding bars 21 cooperate with the fixed plate 1 to form a sampling rack. The sliding sleeve 22 slides on the outer side of the sliding bars 21 to drive the moving cylinder 23 to perform vertical linear movement, so as to move to different depths of the water source for fixed-distance sampling. The sampling piece 24 is arranged on the inner wall of the moving cylinder 23 to take and place water samples.

[0034] The sampling component 24 includes a threaded bottom cover 241 and a sampling tube 242. A threaded hole is provided on the inner bottom wall of the movable cylinder 23, and the threaded bottom cover 241 is threadedly connected to the inner wall of the threaded hole. The sampling tube 242 is placed on the inner wall of the threaded bottom cover 241. Before sampling, the cleaned sampling tube 242 is placed in the threaded bottom cover 241, and then the threaded bottom cover 241 and the movable cylinder 23 are threadedly installed so that the sampling tube 242 is driven by the movable cylinder 23 to extract water samples in the water source.

[0035] See also Figure 3 and Figure 4In order to perform opening and closing water inlet sampling at a fixed depth, the opening and closing mechanism 3 in this embodiment includes an opening and closing cover 31, a connecting pipe 32, an adjusting rod 33 and a hand wheel 34. The opening and closing cover 31 is rotatably connected to the inner wall of the moving cylinder 23, the connecting pipe 32 is fixed to the upper surface of the moving cylinder 23, the adjusting rod 33 is rotatably connected to the inner wall of the connecting pipe 32, and the hand wheel 34 is fixed to the top of the adjusting rod 33. After moving to a specified depth in the water source, the hand wheel 34 can be rotated to drive the adjusting rod 33 and the opening and closing cover 31 to rotate in a circle in the moving cylinder 23.

[0036] In this embodiment, a plurality of water inlets 35 are provided on the side opposite to the movable cylinder 23 of the opening and closing cover 31, a sealing ring is fixed to the inner wall of the connecting pipe 32, and the adjusting rod 33 is rotatably connected to the inner wall of the sealing ring. The length of the adjusting rod 33 is greater than the length of the connecting pipe 32, and the outer diameter of the opening and closing cover 31 is equal to the inner diameter of the movable cylinder 23. When sampling, the user can pull the connecting pipe 32 to push the movable cylinder 23 to slide on the outside of the sliding rod 21 through the connecting pipe 32 to move it to a suitable depth in the water source.

[0037] In this embodiment, a rotating hole is opened on the inner top wall of the movable cylinder 23, and the adjusting rod 33 is rotatably connected to the inner wall of the rotating hole, a leak-proof cover plate 243 is fixed to the lower surface of the threaded bottom cover 241, a test tube base is fixed to the inner wall of the threaded bottom cover 241, and the sampling tube 242 is placed on the inner wall of the test tube base.

[0038] It should be noted that when the opening and closing cover 31 rotates and the position of the water inlet 35 on the outside of the moving cylinder 23 corresponds, it generates a water inlet channel to allow water to enter the sampling tube 242 in the moving cylinder 23. During the moving and placing process, the opening and closing cover 31 is rotated to stagger the position of the water inlet 35 to avoid water from entering and achieve the purpose of fixed-distance sampling.

[0039] The working principle of the above embodiment is:

[0040] When water samples are taken at fixed distances for water conservancy projects, a sampling rack is formed by cooperating with a fixed plate 1 through a slide bar 21, and a sliding sleeve 22 slides on the outside of the slide bar 21 to drive a moving cylinder 23 to perform vertical linear motion, so as to move to different depths of a water source for fixed-distance sampling. Before sampling, a clean sampling tube 242 is placed in a threaded bottom cover 241, and then the threaded bottom cover 241 and the moving cylinder 23 are threadedly installed, so that the sampling tube 242 is driven by the moving cylinder 23 to extract water samples in the water source. When sampling, the user can pull the connecting pipe 32 to pass through the connecting pipe 32. The connecting pipe 32 pushes the moving cylinder 23 to slide on the outside of the slide rod 21 to move it to an appropriate depth in the water source. After moving to the specified depth in the water source, the hand wheel 34 can be rotated to drive the adjusting rod 33 and the opening and closing cover 31 to rotate in a circle in the moving cylinder 23. When the opening and closing cover 31 rotates, when the position of the opening and closing cover 31 corresponds to the water inlet 35 on the outside of the moving cylinder 23, a water inlet channel is generated to allow water to enter the sampling tube 242 in the moving cylinder 23. In the process of moving and placing, the opening and closing cover 31 is rotated to stagger the position of the water inlet 35 to avoid water from entering and achieve the purpose of fixed-distance sampling.

Claims

1. A water sampling device for water conservancy project monitoring, comprising two fixed plates (1), characterized in that: An extraction mechanism (2) for extracting water samples at a fixed distance is provided between opposite sides of the two fixed plates (1); an opening and closing mechanism (3) for opening and closing the extraction device at a fixed distance position for sampling is provided on the inner wall of the extraction mechanism (2); The extraction mechanism (2) comprises two sliding rods (21), two sliding sleeves (22), a movable cylinder (23) and a sampling member (24); the two sliding rods (21) are respectively fixed between opposite sides of the two fixed plates (1); the two sliding sleeves (22) are respectively slidably connected to the outer sides of the two sliding rods (21); the movable cylinder (23) is fixed between opposite sides of the two sliding sleeves (22); and the sampling member (24) is arranged on the inner wall of the movable cylinder (23) to take and place water samples; The opening and closing mechanism (3) comprises an opening and closing cover (31), a connecting pipe (32), an adjusting rod (33) and a hand wheel (34); the opening and closing cover (31) is rotatably connected to the inner wall of the moving cylinder (23); the connecting pipe (32) is fixed to the upper surface of the moving cylinder (23); the adjusting rod (33) is rotatably connected to the inner wall of the connecting pipe (32); and the hand wheel (34) is fixed to the top end of the adjusting rod (33).

2. A water sampling device for water conservancy project monitoring according to claim 1, characterized in that: The sampling member (24) comprises a threaded bottom cover (241) and a sampling tube (242); a threaded hole is provided on the inner bottom wall of the moving cylinder (23); the threaded bottom cover (241) is threadedly connected to the inner wall of the threaded hole; and the sampling tube (242) is placed on the inner wall of the threaded bottom cover (241).

3. A water sampling device for water conservancy project monitoring according to claim 1, characterized in that: A plurality of water inlets (35) are provided on the side of the opening and closing cover (31) opposite to the moving cylinder (23).

4. A water sampling device for water conservancy project monitoring according to claim 1, characterized in that: A rotation hole is provided on the inner top wall of the moving cylinder (23), and the adjusting rod (33) is rotatably connected to the inner wall of the rotation hole.

5. A water sampling device for water conservancy project monitoring according to claim 2, characterized in that: A leak-proof cover plate (243) is fixed to the lower surface of the threaded bottom cover (241).

6. A water sampling device for water conservancy project monitoring according to claim 2, characterized in that: A test tube base is fixed to the inner wall of the threaded bottom cover (241), and the sampling tube (242) is placed on the inner wall of the test tube base.

7. A water sampling device for water conservancy project monitoring according to claim 1, characterized in that: A sealing ring is fixed to the inner wall of the connecting pipe (32), and the adjusting rod (33) is rotatably connected to the inner wall of the sealing ring.

8. The water sampling device for water conservancy project monitoring according to claim 1, characterized in that: The length of the adjusting rod (33) is greater than the length of the connecting pipe (32), and the outer diameter of the opening and closing cover (31) is equal to the inner diameter of the moving cylinder (23).

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