Hydrogeological survey water quality sampling equipment

Abstract

The utility model relates to the technical field of water quality sampling equipment, and discloses hydrogeological survey water quality sampling equipment, which comprises a sampling tank, a water quality sampling device and a water quality sampling device, the piston is in sliding connection with the middle of the inner side wall of the tank body, the piston can do reciprocating motion in the axis direction of the tank body, a first through hole and a first cover plate are distributed on the piston, and when the piston moves close to or away from the filtering assembly, the first through hole is opened or closed by the first cover plate. According to the utility model, the process that detection water quickly passes through the filtering assembly and then is collected into the tank body can be realized, and the process of quickly sampling the exploration water quality is realized, so that the water taking efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality sampling equipment, in particular to a water quality sampling equipment for hydrogeological survey. Background Art

[0002] Hydrogeological survey refers to the discipline that studies the relationship between the formation, distribution, movement, resource characteristics, development and utilization of groundwater and the geological environment during groundwater exploration. Water sampling equipment is an instrument used to collect water samples for testing.

[0003] In hydrogeological surveys, water sampling equipment is a very important tool. It helps professionals obtain groundwater samples in order to analyze the chemical composition, physical properties and microbial content of groundwater. These analysis results are of great significance for assessing the availability of groundwater resources, determining the source and extent of pollution, and formulating water resource protection and management measures.

[0004] The patent with announcement number CN220650139U discloses a water quality sampling device for environmental safety assessment. The device adds an isolation device at the lower end of the tank body. When sampling water in turbid waters with a lot of aquatic plants, the shell can be screwed into the bottom end of the bottom frame. When water enters the tank body, some larger floating objects in the water and some aquatic plants and stones will be isolated through isolation plates A and isolation plates B to prevent them from entering the tank body and causing damage to the tank body. The water collection device can collect and test water in waters of various environments, making the collection process more convenient. However, by setting isolation plates A and partition plates B to filter the test water, the rate at which the test water enters the tank body is reduced. When water is collected over a large area or a large number of water samples are collected, the water collection efficiency will restrict the normal development of the water collection work and affect the overall water quality sampling process.

[0005] In view of this, how to change the current situation of low water extraction efficiency of the water quality sampling device provided with the isolation plate has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0006] The utility model aims to provide a water quality sampling device for hydrogeological survey to overcome the above-mentioned shortcomings.

[0007] In order to achieve the above purpose, the technical solution of the utility model is:

[0008] A water quality sampling device for hydrogeological survey, comprising:

[0009] A sampling tank comprises a tank body, a filter assembly is arranged at the lower end of the tank body; and a piston slidably connected to the middle part of the inner wall of the tank body, the piston can reciprocate along the axis direction of the tank body, the piston is provided with a first through hole and a first cover plate, and when the piston moves toward or away from the filter assembly, the first cover plate respectively opens or closes the first through hole.

[0010] Furthermore, a water baffle is fixedly connected inside the tank body, and the water baffle is located between the filter assembly and the piston. A second through hole and a second cover plate are arranged on the water baffle. When the piston moves closer to or away from the filter assembly, the second cover plate closes or opens the second through hole respectively.

[0011] Furthermore, it also includes:

[0012] A connecting frame fixedly connected to the upper surface of the piston, wherein the connecting frame is in clearance fit with the first cover plate;

[0013] The sampling tank further comprises a tank top plate fixedly connected to the upper end of the tank body, the tank top plate slidably penetrates the upper end of a movable rod, and the lower end of the movable rod is fixedly connected to the connecting frame; and

[0014] A driving assembly is provided on the tank top plate, and the driving assembly is used to drive the movable rod to perform reciprocating motion along the axis direction of the tank body.

[0015] Furthermore, the driving assembly comprises:

[0016] A reduction motor fixedly connected to the tank top plate, wherein the output shaft of the reduction motor is drivingly connected to a drive sleeve, the drive sleeve is rotatably connected to the tank top plate, and the drive sleeve is sleeved on the upper end circumference of the movable rod, and a sliding protrusion is fixedly connected to the inner wall of the drive sleeve; and

[0017] A sliding groove is arranged around the outer side wall of the upper end of the movable rod. The sliding groove is in a broken line shape connected end to end. The sliding protrusion is slidably connected to the sliding groove.

[0018] Furthermore, the driving assembly further comprises:

[0019] a limiting sleeve fixedly connected to the lower surface of the tank top plate, wherein the limiting sleeve is sleeved on the peripheral side of the movable rod and is provided with a limiting groove arranged along the axis direction of the tank body; and

[0020] A limiting rod is vertically fixedly connected to the movable rod, and the limiting rod is slidably connected to the limiting groove.

[0021] Furthermore, a water outlet pipe is provided at the front end of the tank body, the water outlet pipe is communicated with the tank body, and the water outlet pipe is located between the piston and the water baffle.

[0022] Furthermore, the tank top plate is located in the radial direction of the tank body, and both ends of the tank top plate are fixedly connected to the tank body respectively. The tank top plate is hinged with two tank covers, and the two tank covers are axially symmetrically distributed along the tank top plate.

[0023] Furthermore, it also includes:

[0024] a connecting ring fixedly connected to the first cover plate, one end of the first cover plate being hinged to the upper surface of the piston; and

[0025] A connecting rope having one end connected to the connecting ring and the other end connected to one of the tank covers.

[0026] Furthermore, the filter assembly includes a first filter screen and a second filter screen which are arranged in sequence along a direction away from the piston, the filter hole diameter of the first filter screen is smaller than the filter hole diameter of the second filter screen, the second filter screen is a cylindrical structure with an opening toward the direction of the piston, the first filter screen is embedded in the second filter screen, and the side wall of the second filter screen is detachably connected to the lower end of the can body.

[0027] Furthermore, a handle is installed on the upper end of the outer side wall of the can body.

[0028] Compared with the prior art, the utility model has at least the following advantages:

[0029] When the sampling tank of the utility model is placed in the test water area, since the piston can reciprocate along the axis direction of the tank body, when the piston moves away from the filter assembly, the first cover plate can close the first through hole, thereby reducing the gas pressure between the piston and the filter assembly, and the atmospheric pressure presses the test water into the space between the piston and the filter assembly after passing through the filter assembly. Then the piston moves closer to the filter assembly, and the first cover plate can open the first through hole, and the test water between the original piston and the filter assembly enters above the first cover plate through the first through hole. By repeating the above operation, the test water can be quickly passed through the filter assembly and collected inside the tank body, and the process of rapid sampling of the water quality can be realized, thereby improving the water extraction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0031] Figure 1 This is a schematic diagram of the overall structure of the hydrogeological survey water quality sampling equipment of the utility model;

[0032] Figure 2 This is a schematic diagram of the overall structure of the utility model hydrogeological survey water quality sampling device from another perspective;

[0033] Figure 3 It is a cross-sectional view of the utility model hydrogeological survey water quality sampling equipment;

[0034] Figure 4 Another cross-sectional view of the hydrogeological survey water quality sampling device of the utility model;

[0035] Figure 5 For this utility model Figure 4 A partial enlarged view of area A.

[0036] Figure numerals: 1. tank body; 2. piston; 3. first through hole; 4. first cover plate; 5. water baffle; 6. second through hole; 7. second cover plate; 8. connecting frame; 9. tank top plate; 10. movable rod; 11. reduction motor; 12. drive sleeve; 13. sliding protrusion; 14. sliding groove; 15. limit sleeve; 16. limit rod; 17. water outlet pipe; 18. tank cover; 19. connecting ring; 20. connecting rope; 21. first filter screen; 22. second filter screen; 23. handle; 24. bearing. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] Reference Figure 1-5The utility model provides a water quality sampling device for hydrogeological survey, including a sampling tank and a piston 2. Among them: the sampling tank includes a tank body 1, and a filter assembly is arranged at the lower end of the tank body 1, and the filter assembly is used to filter underwater impurities, mud and water plants, etc., to prevent impurities from entering the sampling tank when sampling water quality; a piston 2 that can reciprocate is arranged in the axial direction of the tank body 1, and the piston 2 is slidably connected to the middle part of the inner wall of the tank body 1, and a first through hole 3 and a first cover plate 4 are designed on the piston 2, and one end of the first cover plate 4 is hinged on the upper surface of the piston 2, and the first cover plate 4 can close the first through hole 3 under the action of gravity, and when the piston 2 approaches or moves away from the filter assembly, the first cover plate 4 can respectively realize the state of opening or closing the first through hole 3.

[0040] When the sampling tank of the utility model is placed in the test water area, since the piston 2 can reciprocate along the axis direction of the tank body 1, when the piston 2 moves away from the filter assembly, the first cover plate 4 can close the first through hole 3, thereby reducing the gas pressure between the piston 2 and the filter assembly, and the atmospheric pressure presses the test water into the space between the piston 2 and the filter assembly after passing through the filter assembly. Then the piston 2 moves close to the filter assembly, and the first cover plate 4 can open the first through hole 3, and the test water between the original piston 2 and the filter assembly enters above the first cover plate 4 through the first through hole 3. By repeating the above operation, the test water can quickly pass through the filter assembly and enter the tank body 1, and the process of rapid sampling of the survey water quality can be realized, thereby improving the water extraction efficiency.

[0041] In order to optimize the performance of the device, a water baffle 5 is fixedly connected inside the tank body 1, and the water baffle 5 is located between the filter assembly and the piston 2. A second through hole 6 and a second cover plate 7 are designed on the water baffle 5, and one end of the second cover plate 7 is hinged on the upper surface of the water baffle 5. The second cover plate 7 can close the second through hole 6 under the action of gravity. When the piston 2 approaches or moves away from the filter assembly, the second cover plate 7 can respectively close or open the second through hole 6.

[0042] Specifically, when the piston 2 moves away from the filter assembly, the second cover plate 7 can open the second through hole 6, and the first cover plate 4 closes the first through hole 3. Under the action of atmospheric pressure, the test water passes through the filter assembly and the second through hole 6 in sequence and then enters between the water retaining plate 5 and the piston 2; subsequently, the piston 2 moves closer to the filter assembly, the second cover plate 7 can close the second through hole 6, and the first cover plate 4 can open the first through hole 3, and the test water can pass through the first through hole 3 and enter above the first cover plate 4. By repeating the above operation, the test water can quickly pass through the filter assembly and enter the tank body 1.

[0043] In order to realize the reciprocating motion of the piston 2, the utility model is also provided with a connecting frame 8, which is fixedly connected to the upper surface of the piston 2. The connecting frame 8 is clearance-matched with the first cover plate 4, that is, the first cover plate 4 has no contact with the connecting frame 8 when it is flipped. The sampling tank also includes a tank top plate 9 fixedly connected to the upper end of the tank body 1, and the tank top plate 9 is slidably penetrated by a movable rod 10, and the lower end of the movable rod 10 is fixedly connected to the connecting frame 8; a driving component is arranged on the tank top plate 9, and the driving component is used to drive the movable rod 10 to reciprocate along the axial direction of the tank body 1.

[0044] Preferably, the driving assembly includes a reduction motor 11 and a driving sleeve 12. The reduction motor 11 is a micro reduction motor, and the reduction motor 11 is externally connected to a power supply (not shown in the figure) and a control unit (not shown in the figure), which are connected in series in sequence through wires. The power supply provides power for the reduction motor 11 to start, and the control unit is an air switch, and the control switch can realize the start and stop of the reduction motor 11. The reduction motor 11 is fixedly connected to the tank top plate 9, and the output shaft of the reduction motor 11 is connected to the driving sleeve 12 in a driving manner. The driving sleeve 12 is rotatably connected to the tank top plate 9 through a bearing 24, and the driving sleeve 12 is sleeved on the upper end circumference of the movable rod 10, and the inner wall of the driving sleeve 12 is fixedly connected to a sliding protrusion 13; the upper outer wall of the movable rod 10 is surrounded by a sliding groove 14, and the sliding groove 14 is a broken line shape connected end to end, and the sliding protrusion 13 is slidably connected to the sliding groove 14.

[0045] After the reduction motor 11 is started, it drives the driving sleeve 12 to rotate synchronously, so that the sliding protrusion 13 slides on the sliding groove 14. Since the sliding groove 14 is a broken line connected end to end, it can drive the movable rod 10 to move back and forth along its axial direction.

[0046] The driving assembly of the utility model further comprises a limiting sleeve 15, which is fixedly connected to the lower surface of the tank top plate 9, and a limiting groove arranged along the axis direction of the tank body 1 is arranged on the limiting sleeve 15. The limiting rod 16 is vertically fixedly connected to the movable rod 10, and the limiting rod 16 is slidably connected to the limiting groove. In this way, it can be ensured that the movable rod 10 only moves back and forth along its axis direction without self-rotation.

[0047] Preferably, a water outlet pipe 17 is provided at the front end of the tank body 1, and the water outlet pipe 17 is connected to the tank body 1. The water outlet pipe 17 is located between the piston 2 and the water baffle 5. When the tank body 1 is filled with water, the test water can be discharged into a storage container (not shown in the figure) through the water outlet.

[0048] The tank top plate 9 is located in the radial direction of the tank body 1, and the two ends of the tank top plate 9 are respectively fixedly connected to the tank body 1. The tank top plate 9 is hinged with two tank covers 18, and the two tank covers 18 are axially symmetrically distributed along the tank top plate 9. A connecting ring 19 is fixedly connected to the first cover plate 4, one end of the connecting rope 20 is connected to the connecting ring 19, and the other end of the connecting rope 20 is connected to one of the tank covers 18. During use, the connecting rope 20 is always in a naturally drooping state.

[0049] When the water in the tank body 1 is discharged through the water outlet pipe 17 , the first cover plate 4 is lifted up by the connecting rope 20 to open the first through hole 3 , thereby realizing the process of discharging the detection water above the piston 2 through the first through hole 3 and the water outlet pipe 17 in sequence.

[0050] Preferably, the filter assembly includes a first filter 21 and a second filter 22 which are arranged in sequence along a direction away from the piston 2. The filter hole diameter of the first filter 21 is smaller than the filter hole diameter of the second filter 22. The second filter 22 is a cylindrical structure with an opening toward the piston 2. The end of the second filter 22 is a grid shape, which can filter aquatic plants and larger stones. The first filter 21 is embedded in the second filter 22. The first filter 21 is a non-woven fabric structure, which can filter fine mud and sand. The side wall of the second filter 22 is detachably connected to the lower end of the tank body 1 by threads.

[0051] For easy operation, a handle 23 is installed on the upper end of the outer wall of the can body 1.

[0052] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0053] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A water quality sampling device for hydrogeological survey, characterized in that: include: A sampling tank comprises a tank body (1), the lower end of which is provided with a filter assembly; and a piston (2) slidably connected to the middle of the inner wall of the tank body (1), the piston (2) being capable of reciprocating along the axis of the tank body (1), the piston (2) being provided with a first through hole (3) and a first cover plate (4), and when the piston (2) moves towards or away from the filter assembly, the first cover plate (4) respectively opens or closes the first through hole (3).

2. The hydrogeological survey water quality sampling equipment according to claim 1, characterized in that: A water baffle (5) is fixedly connected inside the tank body (1), and the water baffle (5) is located between the filter assembly and the piston (2). A second through hole (6) and a second cover plate (7) are arranged on the water baffle (5). When the piston (2) moves toward or away from the filter assembly, the second cover plate (7) closes or opens the second through hole (6) respectively.

3. The hydrogeological survey water quality sampling equipment according to claim 2, characterized in that: Also includes: A connecting frame (8) fixedly connected to the upper surface of the piston (2), the connecting frame (8) being clearance-matched with the first cover plate (4); The sampling tank further comprises a tank top plate (9) fixedly connected to the upper end of the tank body (1), the tank top plate (9) slidably penetrates the upper end of a movable rod (10), and the lower end of the movable rod (10) is fixedly connected to the connecting frame (8); and A driving assembly is provided on the tank top plate (9), and the driving assembly is used to drive the movable rod (10) to perform reciprocating motion along the axial direction of the tank body (1).

4. The hydrogeological survey water quality sampling equipment according to claim 3, characterized in that: The drive assembly comprises: A reduction motor (11) is fixedly connected to the tank top plate (9), the output shaft of the reduction motor (11) is drivingly connected to a drive sleeve (12), the drive sleeve (12) is rotatably connected to the tank top plate (9), and the drive sleeve (12) is sleeved on the upper end circumference of the movable rod (10), and the inner wall of the drive sleeve (12) is fixedly connected to a sliding protrusion (13); and A sliding groove (14) is arranged around the outer side wall of the upper end of the movable rod (10), and the sliding groove (14) is in the shape of a broken line connected end to end, and the sliding protrusion (13) is slidably connected to the sliding groove (14).

5. The hydrogeological survey water quality sampling equipment according to claim 4, characterized in that: The drive assembly also includes: a limiting sleeve (15) fixedly connected to the lower surface of the tank top plate (9), the limiting sleeve (15) being sleeved on the peripheral side of the movable rod (10) and provided with a limiting groove arranged along the axial direction of the tank body (1); and A limiting rod (16) is vertically fixedly connected to the movable rod (10), and the limiting rod (16) is slidably connected to the limiting groove.

6. The hydrogeological survey water quality sampling equipment according to claim 5, characterized in that: A water outlet pipe (17) is provided at the front end of the tank body (1), the water outlet pipe (17) is connected to the tank body (1), and the water outlet pipe (17) is located between the piston (2) and the water baffle (5).

7. The hydrogeological survey water quality sampling equipment according to claim 6, characterized in that: The tank top plate (9) is located in the radial direction of the tank body (1), and the two ends of the tank top plate (9) are respectively fixedly connected to the tank body (1). The tank top plate (9) is hinged with two tank covers (18), and the two tank covers (18) are axially symmetrically distributed along the tank top plate (9).

8. The hydrogeological survey water quality sampling equipment according to claim 7, characterized in that: Also includes: a connecting ring (19) fixedly connected to the first cover plate (4), one end of the first cover plate (4) being hinged to the upper surface of the piston (2); as well as A connecting rope (20) is connected to the connecting ring (19) at one end and to one of the tank covers (18) at the other end.

9. The hydrogeological survey water quality sampling equipment according to any one of claims 1 to 8, characterized in that: The filter assembly comprises a first filter screen (21) and a second filter screen (22) which are arranged in sequence in a direction away from the piston (2); the filter hole diameter of the first filter screen (21) is smaller than the filter hole diameter of the second filter screen (22); the second filter screen (22) is a cylindrical structure with an opening facing the direction of the piston (2); the first filter screen (21) is embedded in the second filter screen (22); and the side wall of the second filter screen (22) is detachably connected to the lower end of the tank body (1).

10. The hydrogeological survey water quality sampling equipment according to any one of claims 1 to 8, characterized in that: A handle (23) is installed on the upper end of the outer wall of the can body (1).

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