Urban underground water investigation sampling equipment and use method thereof

Abstract

The invention relates to the related technical field of underground water sampling, and discloses urban underground water investigation sampling equipment and a use method thereof.The urban underground water investigation sampling equipment comprises a control device, the bottom of the control device is movably connected with multiple underground water sampling devices, and each underground water sampling device comprises an electric telescopic rod; a fixing assembly is fixedly connected to the electric telescopic rod, a rack is fixedly connected to the bottom of the fixing assembly, a gear is connected to the side face of the rack in a meshed mode, a rack plate is connected to the side face of the gear in a meshed mode, a connecting ring is fixedly connected to the bottom of the rack plate, and a bottom cover plate is rotationally connected to the side face of the connecting ring. According to the device, water in the sampler is discharged through the electric telescopic rod before sampling, a sample can be preliminarily filtered during sampling, the sampler can be better sealed after sampling, and residual water is prevented from being stored in the sampler, so that the accuracy of an investigation result is improved, and the device is more convenient to use.

Description

Technical Field

[0001] The present invention relates to the technical field related to groundwater sampling, and in particular to a city groundwater survey sampling device and a use method thereof. Background Art

[0002] When conducting a groundwater quality survey, the groundwater quality will be tested to obtain the substance content in the groundwater. When obtaining groundwater, it is necessary to sample the groundwater. When sampling, the sampling device is placed into the groundwater to allow the groundwater to enter the sampling device. When the collection is completed, the sampling device is removed from the groundwater to obtain a sample of the groundwater.

[0003] When investigating and sampling urban groundwater, a sampling device is usually required to collect sample water at a corresponding depth. When the sampling device is placed at a specified depth for sampling, there will be some upper water in the sampling bottle that has not been drained, which will have a certain impact on the sampling results. At the same time, the water in the sampling bottle needs to be sealed and stored to avoid mixing with the upper water. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an urban groundwater survey sampling device and a method of using the same to solve the problems existing in the above-mentioned background technology.

[0005] The present invention provides the following technical solution: an urban groundwater survey sampling device, comprising a control device, the bottom of the control device is movably connected to a plurality of groundwater sampling devices, the groundwater sampling devices include an electric telescopic rod, a fixing assembly is fixedly connected to the electric telescopic rod, a rack is fixedly connected to the bottom of the fixing assembly, a gear is meshedly connected to the side of the rack, a rack plate is meshedly connected to the side of the gear, the bottom of the rack plate is fixedly connected to a connecting ring, and a bottom cover plate is rotatably connected to the side of the connecting ring;

[0006] The top of the bottom cover plate is movably connected with a sampler, a connecting plate is arranged inside the sampler, a connecting rod is fixedly connected to the bottom of the connecting plate, a bottom movable frame is sleeved on the inner side of the connecting rod, a water inlet hole is opened at the bottom center of the bottom movable frame, a connecting rod is fixedly connected at the top center of the bottom movable frame, the connecting rod is movably connected to the connecting plate, a connecting head is fixedly connected to the top of the bottom movable frame, a water outlet hole is opened on the connecting plate, the water outlet hole and the connecting head are movably connected, the bottom cover plate is rotatably connected to the sampler, and a filter tank is opened on the connecting head;

[0007] When the groundwater sampling device reaches the specified sampling depth, the electric telescopic rod moves downward to discharge the water inside the sampler, and the fixing component and the rack connected on the side move downward synchronously, the fixing component drives the gear to rotate, the gear drives the rack plate to move upward, the rack plate drives the connecting ring to move upward, the connecting ring drives the outer side of the bottom cover plate to move upward, the side of the bottom cover plate and the sampler The connection between the sampler will move downward, thereby separating the bottom cover plate and the sampler, and at the same time, the bottom movable frame moves downward under the action of gravity, so that the connection between the connector and the bottom cover plate is released. When sampling, the electric telescopic rod moves upward to draw the sample into the sampler, and the sample water is drawn from the inside of the sampler. The water enters the water inlet hole at the center of the bottom movable frame, then enters the connecting head and is discharged from the filter tank, and then enters the sampler from the water outlet hole for storage. At the same time, when the electric telescopic rod moves upward, it drives the fixed component and the rack to move upward, and drives the rack plate to move downward through the gear transmission. The rack plate drives the connecting ring to move downward, and gradually covers the bottom cover plate on the bottom of the sampler. At the same time, the bottom cover plate will also push the bottom movable frame upward during the movement. After the sampling is completed, the bottom cover plate covers the bottom of the sampler, and pushes the bottom movable frame to the bottom of the connecting plate and contacts with the connecting plate. The connecting head fixedly connected to the bottom of the bottom of the bottom movable frame will be stuck in the water outlet hole opened on the connecting plate.

[0008] Furthermore, a connecting rope is fixedly connected to the top of the control device, a roller is fixedly connected to the top of the connecting rope, and a rocker is fixedly connected to the side of the roller, so that the sampling device can be cast or retrieved by shaking the rocker.

[0009] Furthermore, the side surface of the roller is rotatably connected to a fixed bracket, and the rocker is rotatably connected to the outer side surface of the fixed bracket.

[0010] Furthermore, a limiting ring is fixedly connected to the inner side of the fixed bracket, the groundwater sampling device and the control device are arranged at the center of the limiting ring, and a sampling groove is opened on the side of the limiting ring to facilitate the removal and storage of samples in the sampler.

[0011] Furthermore, a rain shelter is fixedly connected to the top of the fixed bracket, and the rain shelter is a conical structure.

[0012] Furthermore, a support rod is fixedly connected to the outer surface of the sampler, the support rod is movably connected to the rack plate, the gear is rotatably connected to the support rod, and a drainage groove is opened inside the sampler, the port at the bottom of the drainage groove is below the connecting plate, and the port at the top is above the connecting plate.

[0013] Furthermore, a baffle plate is fixedly connected at the bottom center of the control device, and a weight block is fixedly connected to the baffle plate, so that the device can sink steadily in the horizontal direction.

[0014] Furthermore, a filter screen is provided inside the connector, the filter screen extends from the water inlet into the connector and fits onto the inner wall of the connector, and a filter screen is provided at the port of the drainage trough to facilitate filtering of the sampled samples.

[0015] A method for using a sampling device for urban groundwater investigation, the method comprising:

[0016] S1: When sampling, the sampling device is lowered by rotating the rocker. When the groundwater sampling device reaches the specified sampling depth, the electric telescopic rod moves downward to discharge the water inside the sampler, so that the sample is the water at the current depth. The fixed component and the rack connected on the side move downward synchronously, the fixed component drives the gear to rotate, the gear drives the rack plate to move upward, the rack plate drives the connecting ring to move upward, the connecting ring drives the outer side of the bottom cover plate to move upward, and the connection between the side of the bottom cover plate and the sampler moves downward, thereby separating the bottom cover plate and the sampler;

[0017] S2: The bottom movable frame moves downward under the action of gravity, so that the connection between the connector and the bottom cover plate is released. When sampling, the electric telescopic rod moves upward to absorb the sample into the sampler. The sample water enters from the water inlet hole at the center of the bottom movable frame set inside the sampler, and then enters the connector and is discharged from the filter tank. The connector can preliminarily filter the water entering the sampler, and then enters the sampler from the water outlet hole for storage;

[0018] S3: When the electric telescopic rod moves upward, it drives the fixed assembly and the rack to move upward, and drives the rack plate downward through gear transmission. The rack plate drives the connecting ring downward, and gradually covers the bottom cover plate on the bottom of the sampler. At the same time, the bottom cover plate will also push the bottom movable frame upward during the movement. After the sampling is completed, the bottom cover plate covers the bottom of the sampler, and pushes the bottom movable frame to the bottom of the connecting plate and contacts the connecting plate. The connector fixed at the bottom of the bottom movable frame will be stuck in the water outlet opened on the connecting plate, which improves the sealing effect of the bottom of the device and can better preserve the internal samples. Repeating the above steps can perform multiple sampling.

[0019] Beneficial effects:

[0020] 1. The urban groundwater survey sampling equipment and its use method. The device is provided with an electric telescopic rod, a sampler, a fixing assembly, a rack, a gear and a bottom cover. Before sampling, the electric telescopic rod moves downward, driving the fixing assembly, the rack and the gear to move, thereby driving the bottom cover to open and discharge the internal water to avoid residual water in the sampler, thereby affecting the survey results.

[0021] 2. The city's groundwater survey sampling equipment and its use method. After the sampling is completed, the bottom cover plate is covered on the bottom of the sampler, and the bottom movable frame is pushed to the bottom of the connecting plate to contact the connecting plate. The connector fixed at the bottom of the bottom movable frame will be stuck in the water outlet, which improves the sealing effect of the bottom of the device and can better preserve the internal samples.

[0022] 3. The urban groundwater survey sampling equipment and its use method, when sampling, the electric telescopic rod moves upward to suck the sample into the sampler. The sample water enters from the water inlet hole at the center of the bottom movable frame set inside the sampler, and then enters the connecting head and is discharged from the filter tank. The connecting head can perform preliminary filtration on the water entering the sampler. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall external structure of an urban groundwater survey sampling device and a method of using the same proposed by the present invention;

[0024] Figure 2 A schematic diagram of the structure of a groundwater sampling device for urban groundwater investigation and sampling equipment and a method of using the same proposed by the present invention;

[0025] Figure 3 A schematic diagram of the structure of a groundwater sampling device for urban groundwater investigation and sampling equipment and a method of using the same proposed by the present invention;

[0026] Figure 4 The present invention provides a schematic diagram of the connection structure of a connecting plate and a bottom movable frame of an urban groundwater survey sampling device and a method of using the same.

[0027] Among them: 1. Groundwater sampling device; 101. Electric telescopic rod; 102. Fixed assembly; 103. Gear; 104. Rack; 105. Connecting ring; 106. Bottom cover; 107. Support rod; 108. Rack plate; 109. Sampler; 110. Connector; 111. Drainage trough; 112. Connecting plate; 113. Baffle plate; 114. Weight block; 115. Connecting rod; 116. Water outlet; 117. Water inlet; 118. Connecting rod; 119. Filter trough; 120. Bottom movable frame; 2. Control device; 3. Connecting rope; 4. Roller; 5. Rain shelter; 6. Rocker; 7. Fixed bracket; 8. Limiting ring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1

[0030] See also Figure 1-Figure 4 , a sampling device for urban groundwater investigation, comprising a control device 2, the bottom of which is movably connected to a plurality of groundwater sampling devices 1, the groundwater sampling device 1 comprising an electric telescopic rod 101, a fixing assembly 102 is fixedly connected to the electric telescopic rod 101, a rack 104 is fixedly connected to the bottom of the fixing assembly 102, a gear 103 is meshedly connected to the side of the rack 104, a rack plate 108 is meshedly connected to the side of the gear 103, a connecting ring 105 is fixedly connected to the bottom of the rack plate 108, a bottom cover plate 106 is rotatably connected to the side of the connecting ring 105;

[0031] The top of the bottom cover plate 106 is movably connected with a sampler 109, a connecting plate 112 is arranged inside the sampler 109, a connecting rod 118 is fixedly connected to the bottom of the connecting plate 112, a bottom movable frame 120 is sleeved on the inner side of the connecting rod 118, a water inlet hole 117 is provided at the bottom center of the bottom movable frame 120, a connecting rod 115 is fixedly connected at the top center of the bottom movable frame 120, the connecting rod 115 is movably connected to the connecting plate 112, a connector 110 is fixedly connected to the top of the bottom movable frame 120, a water outlet hole 116 is provided on the connecting plate 112, the water outlet hole 116 and the connector 110 are movably connected, the bottom cover plate 106 and the sampler 109 are rotatably connected, and a filter tank 119 is provided on the connector 110;

[0032] When the groundwater sampling device 1 reaches the specified sampling depth, the electric telescopic rod 101 moves downward to discharge the water inside the sampler 109, and the fixing component 102 and the rack 104 fixedly connected on the side move downward synchronously, the fixing component 102 drives the gear 103 to rotate, the gear 103 drives the rack plate 108 to move upward, the rack plate 108 drives the connecting ring 105 to move upward, the connecting ring 105 drives the outer side of the bottom cover plate 106 to move upward, the side of the bottom cover plate 106 and the sampler 109 The connection point will move downward, thereby separating the bottom cover plate 106 and the sampler 109, and at the same time, the bottom movable frame 120 moves downward under the action of gravity, so that the connection between the connector 110 and the bottom cover plate 106 is released. When sampling, the electric telescopic rod 101 moves upward to draw the sample into the sampler 109, and the sample water is sucked into the sampler 109 from the bottom movable frame 120 set inside the sampler 109. The water enters the movable frame 120 through the water inlet hole 117 at the center, then enters the connecting head 110 and is discharged from the filter tank 119, and then enters the sampler 109 from the water outlet hole 116 for storage. At the same time, when the electric telescopic rod 101 moves upward, it drives the fixed assembly 102 and the rack 104 to move upward, and drives the rack plate 108 to move downward after being transmitted by the gear 103. The rack plate 108 drives the connecting ring 105 to move downward, and gradually covers the bottom cover plate 106 on the bottom of the sampler 109. At the same time, the bottom cover plate 106 will also push the bottom movable frame 120 upward during the movement. After the sampling is completed, the bottom cover plate 106 covers the bottom of the sampler 109, and pushes the bottom movable frame 120 to the bottom of the connecting plate 112 and contacts the connecting plate 112. The connecting head 110 fixedly connected to the bottom of the bottom of the bottom movable frame 120 will be stuck in the water outlet hole 116 opened on the connecting plate 112.

[0033] Embodiment 2

[0034] See also Figure 1-Figure 4 The top of the control device 2 is fixedly connected with a connecting rope 3, the top of the connecting rope 3 is fixedly connected with a roller 4, and the side of the roller 4 is fixedly connected with a rocker 6, so that the sampling device 1 can be cast or retrieved by shaking the rocker 6.

[0035] The side surface of the roller 4 is rotatably connected to a fixed bracket 7 , and the rocker 6 is rotatably connected to the outer side surface of the fixed bracket 7 .

[0036] A limiting ring 8 is fixedly connected to the inner side of the fixed bracket 7, and the groundwater sampling device 1 and the control device 2 are arranged at the center of the limiting ring 8. A sampling groove is opened on the side of the limiting ring 8 to facilitate the removal and storage of samples in the sampler 109.

[0037] The top of the fixed bracket 7 is fixedly connected with a rain shelter 5, and the rain shelter 5 is a conical structure.

[0038] A support rod 107 is fixedly connected to the outer surface of the sampler 109, and the support rod 107 is movably connected to the rack plate 108, and the gear 103 is rotatably connected to the support rod 107. A drainage groove 111 is opened inside the sampler 109, and the port at the bottom of the drainage groove 111 is below the connecting plate 112, and the top port is above the connecting plate 112. During use, after the electric telescopic rod 101 is started, a part of water will be absorbed upward from the bottom of the sampler 109, and the other part will be absorbed from the top port of the drainage groove 111, that is, above the electric telescopic rod 101. On the one hand, it is beneficial to improve the accuracy of the sample results, and on the other hand, it avoids excessive pressure below and stirring up the mud and sand in the water, thereby affecting the investigation results.

[0039] A baffle plate 113 is fixedly connected at the bottom center of the control device 2, and a weight block 114 is fixedly connected to the baffle plate 113, so that the device can sink steadily in the horizontal direction.

[0040] A filter is provided inside the connector 110 , and the filter extends from the water inlet 117 into the connector 110 and fits onto the inner wall of the connector 110 . A filter is provided at the port of the drainage groove 111 to facilitate filtering of the sampled samples.

[0041] A method for using a sampling device for urban groundwater investigation, the method comprising:

[0042] S1: When sampling, the sampling device 1 is lowered downward by rotating the rocker 6. After the groundwater sampling device 1 reaches the specified sampling depth, the electric telescopic rod 101 moves downward to discharge the water inside the sampler 109, so that the sample is the water at the current depth. The fixing assembly 102 and the rack 104 fixedly connected on the side move downward synchronously, the fixing assembly 102 drives the gear 103 to rotate, the gear 103 drives the rack plate 108 to move upward, the rack plate 108 drives the connecting ring 105 to move upward, the connecting ring 105 drives the outer side of the bottom cover plate 106 to move upward, and the side of the bottom cover plate 106 and the sampler 109 The connection point will move downward, thereby separating the bottom cover plate 106 and the sampler 109;

[0043] S2: The bottom movable frame 120 moves downward under the action of gravity, so that the connection between the connector 110 and the bottom cover plate 106 is disconnected. When sampling, the electric telescopic rod 101 moves upward to suck the sample into the sampler 109. The sample water enters from the water inlet 117 at the center of the bottom movable frame 120 set inside the sampler 109, then enters the connector 110 and is discharged from the filter tank 119, and then enters the sampler 109 from the water outlet 116 for storage;

[0044] S3: When the electric telescopic rod 101 moves upward, it drives the fixed component 102 and the rack 104 to move upward, and drives the rack plate 108 downward after being transmitted by the gear 103. The rack plate 108 drives the connecting ring 105 to move downward, and gradually covers the bottom cover plate 106 on the bottom of the sampler 109. At the same time, the bottom cover plate 106 will also push the bottom movable frame 120 upward during the movement. After the sampling is completed, the bottom cover plate 106 covers the bottom of the sampler 109, and pushes the bottom movable frame 120 to the bottom of the connecting plate 112 and contacts with the connecting plate 112. The connector 110 fixedly connected to the bottom of the bottom movable frame 120 will be stuck in the water outlet 116 opened on the connecting plate 112, which improves the sealing effect of the bottom of the device and can better preserve the internal samples. Repeating the above steps can be used for multiple sampling.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An urban groundwater survey sampling device, comprising a control device (2), characterized in that: The bottom of the control device (2) is movably connected to a plurality of groundwater sampling devices (1), wherein the groundwater sampling devices (1) comprise an electric telescopic rod (101), a fixing assembly (102) is fixedly connected to the electric telescopic rod (101), a rack (104) is fixedly connected to the bottom of the fixing assembly (102), a gear (103) is meshedly connected to the side of the rack (104), a rack plate (108) is meshedly connected to the side of the gear (103), a connecting ring (105) is fixedly connected to the bottom of the rack plate (108), and a bottom cover plate (106) is rotatably connected to the side of the connecting ring (105); The top of the bottom cover plate (106) is movably connected to a sampler (109), a connecting plate (112) is provided inside the sampler (109), the bottom of the connecting plate (112) is fixedly connected to a connecting rod (118), the inner side of the connecting rod (118) is sleeved with a bottom movable frame (120), a water inlet hole (117) is provided at the bottom center of the bottom movable frame (120), and the top center of the bottom movable frame (120) is fixedly connected to a connecting rod (118). A connecting rod (115) is connected, the connecting rod (115) is movably connected to the connecting plate (112), a connecting head (110) is fixedly connected to the top of the bottom movable frame (120), a water outlet hole (116) is provided on the connecting plate (112), the water outlet hole (116) and the connecting head (110) are movably connected, the bottom cover plate (106) and the sampler (109) are rotatably connected, and a filtering groove (119) is provided on the connecting head (110); When the groundwater sampling device (1) reaches the specified sampling depth, the electric telescopic rod (101) moves downward to discharge the water inside the sampler (109). During sampling, the electric telescopic rod (101) moves upward to draw the sample into the sampler (109). The sample water enters from the water inlet hole (117) at the center of the bottom movable frame (120) provided inside the sampler (109), then enters the connector (110) and is discharged from the filter tank (119), and then enters the sampler (109) from the water outlet hole (116) for storage.

2. The urban groundwater survey sampling equipment according to claim 1 is characterized in that: The top of the control device (2) is fixedly connected to a connecting rope (3), the top of the connecting rope (3) is fixedly connected to a roller (4), and the side of the roller (4) is fixedly connected to a rocker (6).

3. The urban groundwater survey sampling equipment according to claim 2 is characterized in that: The side surface of the roller (4) is rotatably connected to a fixed bracket (7), and the rocker (6) is rotatably connected to the outer side surface of the fixed bracket (7).

4. The urban groundwater survey sampling equipment according to claim 3 is characterized by: A limiting ring (8) is fixedly connected to the inner side surface of the fixed bracket (7), the groundwater sampling device (1) and the control device (2) are arranged at the center of the limiting ring (8), and a sampling groove is provided on the side surface of the limiting ring (8).

5. The urban groundwater survey sampling equipment according to claim 4 is characterized by: The top of the fixed bracket (7) is fixedly connected with a rain shelter (5), and the rain shelter (5) is a conical structure.

6. The urban groundwater survey sampling equipment according to claim 5 is characterized by: A support rod (107) is fixedly connected to the outer surface of the sampler (109), the support rod (107) is movably connected to the rack plate (108), the gear (103) is rotatably connected to the support rod (107), and a drainage groove (111) is provided inside the sampler (109), the port at the bottom of the drainage groove (111) is below the connecting plate (112), and the port at the top is above the connecting plate (112).

7. The urban groundwater survey sampling equipment according to claim 6 is characterized by: A blocking plate (113) is fixedly connected at the center position of the bottom of the control device (2), and a weight block (114) is fixedly connected to the blocking plate (113).

8. The urban groundwater survey sampling equipment according to claim 7 is characterized by: A filter screen is arranged inside the connector (110), the filter screen extends from the water inlet hole (117) into the connector (110) and fits on the inner wall of the connector (110), and a filter screen is arranged at the port of the drainage groove (111).

9. A method for using a city groundwater survey sampling device, the city groundwater survey sampling device as claimed in claim 8, characterized in that: The method includes: S1: When sampling, the sampling device (1) is lowered downward by rotating the rocker (6). When the groundwater sampling device (1) reaches the specified sampling depth, the electric telescopic rod (101) moves downward to discharge the water inside the sampler (109) to the outside, so that the sample is the water at the current depth during sampling. The fixing component (102) and the rack (104) connected to the side move downward synchronously, the fixing component (102) drives the gear (103) to rotate, the gear (103) drives the rack plate (108) to move upward, the rack plate (108) drives the connecting ring (105) to move upward, the connecting ring (105) drives the outer side surface of the bottom cover plate (106) to move upward, and the connection between the side surface of the bottom cover plate (106) and the sampler (109) moves downward, thereby separating the bottom cover plate (106) and the sampler (109); S2: The bottom movable frame (120) moves downward under the action of gravity, so that the connection between the connector (110) and the bottom cover plate (106) is released. When sampling, the electric telescopic rod (101) moves upward to absorb the sample into the sampler (109). The sample water enters from the water inlet hole (117) at the center of the bottom movable frame (120) provided inside the sampler (109), then enters the connector (110) and is discharged from the filter tank (119), and then enters the sampler (109) from the water outlet hole (116) for storage; S3: When the electric telescopic rod (101) moves upward, it drives the fixed assembly (102) and the rack (104) to move upward, and after being transmitted by the gear (103), it drives the rack plate (108) to move downward. The rack plate (108) drives the connecting ring (105) to move downward, and gradually covers the bottom cover plate (106) on the bottom of the sampler (109). At the same time, the bottom cover plate (106) will also push the bottom movable frame (120) upward during the movement. After the sampling is completed, the bottom cover plate (106) covers the bottom of the sampler (109) and pushes the bottom movable frame (120) to the bottom of the connecting plate (112) and contacts the connecting plate (112). The connector (110) fixedly connected to the bottom of the bottom movable frame (120) will be stuck in the water outlet (116) opened on the connecting plate (112), thereby improving the sealing effect of the bottom of the device and better preserving the internal sample. The above steps can be repeated to perform multiple sampling.

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