Sampling device capable of collecting different depths

Abstract

The utility model discloses a sampling device capable of sampling at different depths, which belongs to the technical field of river sampling and comprises a holding rod, a lifting rope rolling drum is rotatably arranged on the right side of the rear end of the holding rod, a rotating tensioning wheel is fixedly arranged under the front part of the holding rod, an end wheel is fixedly arranged over the front end part of the holding rod, and the end wheel is fixedly connected with the lifting rope rolling drum. An angle sensor is fixedly arranged on the mounting frame, the shaft end of the angle sensor is fixedly connected with the end part of the rotating shaft, a sling is wound on the sling winding drum, and the end part of the sling is fixedly connected with a sinking sampling mechanism. Therefore, the sampling depth can be accurately controlled, sampling can be started after the sinking sampling mechanism sinks to the specified depth of a river, sampling of a water body at the specified depth can be accurately completed, the overall structure is simple, the portability is high, and the use cost is low.

Description

Technical Field

[0001] The utility model relates to river sampling, in particular to a sampling device capable of collecting samples at different depths, belonging to the technical field of river sampling. Background Art

[0002] River sampling refers to the whole process of collecting representative water samples from rivers in order to test various specified water quality characteristics. The purposes of river sampling are usually the following: evaluating river water quality, determining whether river water can be used as a public water source, determining whether river water can be used as agricultural water, determining the suitability of river water for maintaining and developing fisheries, determining the adaptability of river water for recreational purposes, studying the impact of sewage discharge or accidental leakage on receiving water bodies, evaluating the impact of land use on river water quality, evaluating the accumulation and release of pollutants in riverbed sediments on aquatic organisms and sediments, etc. In this process, river sampling devices are needed to collect river water at designated locations for analysis.

[0003] Existing river sampling devices are generally divided into two categories. One is to manually lower the sampling bottle for sampling, but this form can only control the sampling depth more accurately, and it is difficult to complete the sampling work at a specified depth. The second is to sample by remotely controlling the bottom of the boat, but this method still has the problem of being unable to control the sampling depth more accurately, and the cost of use is relatively high. Therefore, in response to the above problems, a sampling device that can collect samples at different depths is proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a sampling device that can collect samples at different depths. The river sampling can achieve relatively precise control of the sampling depth, and can start sampling after the sinking sampling mechanism is sunk to a specified depth of the river. The sampling of water bodies at a specified depth can be completed relatively accurately, and the overall structure is simple, with strong portability and low use cost. The technical problems in the prior art that river sampling devices are difficult to control the sampling depth relatively accurately, have poor portability and high use cost are solved.

[0005] In order to solve the above problems, the following technical solutions are provided:

[0006] A sampling device capable of collecting samples at different depths is designed, comprising a holding rod, a rope winding drum is rotatably arranged on the right side of the rear end of the holding rod, a rotatable tensioning wheel is fixedly arranged just below the front of the holding rod, an end wheel is fixedly arranged just above the front end of the holding rod, the end wheel comprises a side bracket fixedly connected to the side face of the front end of the holding rod, a roller body is rotatably arranged on the top of the side bracket via a rotating shaft, a mounting frame is fixedly arranged on the left side of the side bracket, an angle sensor is fixedly arranged on the mounting frame, the shaft end of the angle sensor is fixedly connected to the end of the rotating shaft, an oblique oblique through hole is opened in the center of the front of the holding rod, a sling is wound around the rope winding drum, and a sinking sampling mechanism is fixedly connected to the end of the sling.

[0007] The above-mentioned structural form can control the retraction and extension of the sling through the rope winding drum, thereby driving the sinking sampling mechanism connected to the end of the sling to move up and down to change the sinking depth, thereby realizing the sampling of water samples at different depths. In particular, the sling will drive the roller body to rotate due to friction during the retraction and extension process, and the retraction and extension length of the sling is proportional to the rotation amplitude of the roller body, and the angle sensor can monitor the rotation angle of the roller body. Therefore, the rotation information of the roller body can be obtained through the angle sensor, and then the retraction and extension length of the sling can be obtained, which is equivalent to the up and down movement distance of the sinking sampling mechanism, so that the up and down movement amplitude of the sinking sampling mechanism can be monitored more accurately, which is convenient for the user to adjust the depth of the sinking sampling mechanism in the river.

[0008] Furthermore, the sling is laid along the length direction of the holding rod, firstly passing around the lower end of the tensioning wheel, then passing through the oblique through hole, and finally passing around the upper end of the end wheel and bending down.

[0009] The above-mentioned structural form can ensure a long contact length between the sling and the end wheel, thereby ensuring sufficient friction between the two, making it difficult for the sling and the end wheel to slide relative to each other, thereby improving the accuracy of the device when in use.

[0010] Furthermore, the sinking sampling mechanism includes a sealed shell, a micro remote-controlled water pump is fixedly arranged in the middle part of the sealed shell, a water pump power supply battery is fixedly arranged in the upper part of the sealed shell, and the water pump power supply battery is electrically connected to the micro remote-controlled water pump.

[0011] The above structure can pump water at the current depth through a micro remote-controlled water pump, which is an indispensable power component for sampling work. The water pump power supply battery is used to power the micro remote-controlled water pump to ensure its normal operation.

[0012] Furthermore, an internal threaded mounting cylinder is fixedly disposed in the center of the lower end surface of the sealed shell, and the internal thread of the internal threaded mounting cylinder is connected to a sampling tube.

[0013] The above-mentioned structural form facilitates the detachable connection between the sampling tube and the closed housing, and facilitates the installation and removal of the sampling tube during use.

[0014] Furthermore, the input interface of the micro remote-controlled water pump is sealed with a water inlet pipe, the end of the water inlet pipe is bent and extends out of the closed shell, the output interface of the micro remote-controlled water pump is sealed with a water injection pipe, the end of the water injection pipe extends into the bottom of the sampling tube, and an exhaust pipe is sealed on the lower end plate of the closed shell, one end of the exhaust pipe is connected to the internal space of the sampling tube, and the other end of the exhaust pipe is bent and extends out of the closed shell.

[0015] In the above structure, when the micro remote control water pump is working, the water at the current depth is sucked in from the water inlet pipe and then filled into the sampling tube through the water injection pipe. At the same time, the air in the sampling tube can be discharged through the exhaust pipe to ensure that the sampling work can proceed normally.

[0016] Furthermore, connecting rods are fixedly arranged at the four corners of the lower end surface of the sealed shell, a counterweight block is fixedly connected to the bottom end of the connecting rod, and a suspension head is centrally arranged on the upper end surface of the sealed shell.

[0017] In the above structural form, the counterweight block can ensure that the sinking sampling mechanism can remain vertically downward during the sinking process, avoiding the sinking sampling mechanism from flipping and tilting to interfere with normal sampling, while the suspension head provides the necessary conditions for the fixed connection of the sling.

[0018] Furthermore, a processing terminal is fixedly installed above the rear end of the holding rod, and the processing terminal includes a protective shell, a processing circuit board is fixedly installed in the protective shell, and a wireless transmission circuit board is electrically connected to the processing circuit board. A display module and a terminal power supply battery are fixedly installed at the upper and lower parts of the protective shell respectively, and the processing circuit board is electrically connected to the display module and the terminal power supply battery through wires.

[0019] The above-mentioned structural form can analyze and process the angle information collected by the angle sensor through the processing circuit board, convert it into information such as the moving distance, and display it through the display module to facilitate the user to view and understand. At the same time, the processing circuit board can control the operation of the micro remote control water pump through the wireless transmission circuit board.

[0020] Furthermore, the angle sensor is electrically connected to a data transmission line, and the data transmission line is electrically connected to a processing circuit board.

[0021] The above-mentioned structural form can synchronize the angle information collected by the angle sensor to the processing circuit board for analysis and processing without time difference, so that the display information of the display module can change in real time without delay, which is convenient for adjusting the sampling depth.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] In the utility model, the retraction and extension of the sling is controlled by a rope winding drum, which in turn drives the sinking sampling mechanism connected to the end of the sling to move up and down to change the sinking depth, thereby realizing the sampling of water samples at different depths. In particular, the roller body will be driven to rotate due to friction during the retraction and extension process of the sling, so the rotation information of the roller body can be obtained through the angle sensor, and then the retraction and extension length of the sling is obtained, which is equivalent to the up and down movement distance of the sinking sampling mechanism, so that the up and down movement amplitude of the sinking sampling mechanism can be monitored more accurately, which is convenient for the user to adjust the depth of the sinking sampling mechanism in the river. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a schematic diagram of laying the sling of the utility model;

[0027] Figure 3 It is a partial structural sectional view of the utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the sinking sampling mechanism of the utility model;

[0029] Figure 5 It is a schematic diagram of the processing terminal structure of the utility model.

[0030] In the figure: 1. holding rod; 11. oblique through hole; 2. rope winding drum; 3. tensioning wheel; 4. end wheel; 41. side bracket; 42. roller body; 43. rotating shaft; 5. angle sensor; 51. mounting frame; 52. data transmission line; 6. sling; 7. sinking sampling mechanism; 71. sealed shell; 711. internal thread mounting cylinder; 72. micro remote control water pump; 73. water pump power supply battery; 74. sampling tube; 75. water inlet pipe; 76. water injection pipe; 77. exhaust pipe; 78. counterweight; 781. connecting rod; 79. suspension head; 8. processing terminal; 81. protective shell; 82. processing circuit board; 83. wireless transmission circuit board; 84. display module; 85. terminal power supply battery; 86. wire. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0032] like Figure 1 As shown, the present embodiment provides a sampling device capable of collecting samples at different depths, comprising a holding rod 1, a rope winding drum 2 is rotatably provided on the right side of the rear end of the holding rod 1, a rotatable tensioning wheel 3 is fixedly provided just below the front of the holding rod 1, an end wheel 4 is fixedly provided just above the front end of the holding rod 1, a sling 6 is wound on the rope winding drum 2, and a sinking sampling mechanism 7 is fixedly connected to the end of the sling 6. The above-mentioned structural form can control the retraction and extension of the sling 6 through the rope winding drum 2, thereby driving the sinking sampling mechanism 7 connected to the end of the sling 6 to move up and down to change the sinking depth, thereby realizing the sampling of water samples at different depths.

[0033] like Figure 2-Figure 3 As shown, the end wheel 4 includes a side bracket 41 fixedly connected to the front end side of the holding rod 1, and a roller body 42 is rotatably mounted on the top of the side bracket 41 through a rotating shaft 43. A mounting frame 51 is fixedly arranged on the left side of the side bracket 41, and an angle sensor 5 is fixedly arranged on the mounting frame 51. The shaft end of the angle sensor 5 is fixedly connected to the end of the rotating shaft 43. In the above-mentioned structural form, the sling 6 will drive the roller body 42 to rotate due to friction during the retraction and release process, and the retraction and release length of the sling 6 is proportional to the rotation amplitude of the roller body 42, and the angle sensor 5 can monitor the rotation angle of the roller body 42. Therefore, the rotation information of the roller body 42 can be obtained through the angle sensor 5, and then the retraction and release length of the sling 6 can be obtained, which is equivalent to the up and down movement distance of the sinking sampling mechanism 7, so that the up and down movement amplitude of the sinking sampling mechanism 7 can be monitored more accurately, which is convenient for the user to adjust the depth of the sinking sampling mechanism 7 in the river.

[0034] like Figure 2 As shown, an oblique through hole 11 is opened in the center of the front part of the holding rod 1, and the sling 6 is laid along the length direction of the holding rod 1. It first passes around the lower end of the tensioning wheel 3, then passes through the oblique through hole 11, and finally passes around the upper end of the end wheel 4 and bends down. The above-mentioned structural form can ensure that there is a long contact length between the sling 6 and the end wheel 4, so as to ensure that there is sufficient friction between the two, so that it is not easy for the sling 6 and the end wheel 4 to slide relative to each other, thereby improving the accuracy of the device when in use.

[0035] like Figure 4As shown, the sinking sampling mechanism 7 includes a sealed shell 71, a micro remote-controlled water pump 72 is fixedly arranged in the middle part of the sealed shell 71, and a water pump power supply battery 73 is fixedly arranged in the upper part of the sealed shell 71. The water pump power supply battery 73 is electrically connected to the micro remote-controlled water pump 72, and the water body at the current depth can be pumped in through the micro remote-controlled water pump 72. As an indispensable power component for sampling work, the water pump power supply battery 73 is used to power the micro remote-controlled water pump 72 to ensure its normal operation.

[0036] like Figure 4 As shown, an internal threaded mounting tube 711 is fixedly provided in the center of the lower end surface of the sealed shell 71, and the internal threaded mounting tube 711 is connected to the sampling tube 74. The above-mentioned structural form facilitates the detachable connection between the sampling tube 74 and the sealed shell 71, and facilitates the installation and removal of the sampling tube 74 during use.

[0037] like Figure 4 As shown, the input interface of the micro remote-controlled water pump 72 is sealed connected with a water inlet pipe 75, the end of the water inlet pipe 75 is bent and extends out of the closed shell 71, and the output interface of the micro remote-controlled water pump 72 is sealed connected with a water injection pipe 76, the end of the water injection pipe 76 extends into the bottom of the sampling tube 74, and an exhaust pipe 77 is sealed on the lower end plate of the closed shell 71. One end of the exhaust pipe 77 is connected to the internal space of the sampling tube 74, and the other end of the exhaust pipe 77 is bent and extends out of the closed shell 71. When the micro remote-controlled water pump 72 is working, the water at the current depth is sucked in from the water inlet pipe 75, and then filled into the sampling tube 74 through the water injection pipe 76. At the same time, the air in the sampling tube 74 can be discharged through the exhaust pipe 77 to ensure that the sampling work can be carried out normally.

[0038] like Figure 4 As shown, connecting rods 781 are fixedly provided at the four corners of the lower end surface of the closed shell 71, and a counterweight block 78 is fixedly connected to the bottom end of the connecting rod 781. A hanging head 79 is centrally provided on the upper end surface of the closed shell 71. The counterweight block 78 can ensure that the sinking sampling mechanism 7 can remain vertically downward during the sinking process to prevent the sinking sampling mechanism 7 from flipping and tilting and interfering with normal sampling, while the hanging head 79 provides necessary conditions for the fixed connection of the sling 6.

[0039] like Figure 1 , Figure 5As shown, a processing terminal 8 is fixedly arranged above the rear end of the holding rod 1, and the processing terminal 8 includes a protective shell 81, and a processing circuit board 82 is fixedly arranged in the protective shell 81. The processing circuit board 82 is electrically connected to a wireless transmission circuit board 83. A display module 84 and a terminal power supply battery 85 are fixedly arranged at the upper and lower parts of the protective shell 81 respectively. The processing circuit board 82 is electrically connected to the display module 84 and the terminal power supply battery 85 through wires 86 respectively. In the above structural form, the processing circuit board 82 can analyze and process the angle information collected by the angle sensor 5, and convert it into information such as the moving distance, which is displayed through the display module 84 for the user to view and understand. At the same time, the processing circuit board 82 can control the operation of the micro remote control water pump 72 through the wireless transmission circuit board 83.

[0040] like Figure 1 , Figure 5 As shown, the angle sensor 5 is electrically connected to a data transmission line 52, and the data transmission line 52 is electrically connected to a processing circuit board 82. The above-mentioned structural form enables the angle information collected by the angle sensor 5 to be synchronized to the processing circuit board 82 without time difference for analysis and processing, so that the display information of the display module 84 can change in real time without delay, which is convenient for adjusting the sampling depth.

[0041] The use principle and use process of the utility model are as follows: the retraction and extension of the sling 6 is controlled by the arranged rope reeling drum 2, thereby driving the sinking sampling mechanism 7 connected to the end of the sling 6 to move up and down to change the sinking depth, thereby realizing the sampling of water samples at different depths; during the retraction and extension process of the sling 6, the roller body 42 is driven to rotate due to the friction effect, so the rotation information of the roller body 42 can be obtained through the angle sensor 5, and then the retraction and extension length of the sling 6 is obtained, which is equivalent to the up and down movement distance of the sinking sampling mechanism 7, so that the up and down movement amplitude of the sinking sampling mechanism 7 can be monitored more accurately, which is convenient for the user to adjust the sinking sampling The mechanism 7 is located at the depth in the river; the processing circuit board 82 analyzes and processes the angle information collected by the angle sensor 5, converts it into information such as the moving distance, and displays it through the display module 84, so that the user can view and understand it easily; when the sinking sampling mechanism 7 sinks to the specified depth, the processing circuit board 82 can control the micro remote control water pump 72 to start working through the wireless transmission circuit board 83, and the water at the current depth is sucked in from the water inlet pipe 75, and then filled into the sampling tube 74 through the water injection pipe 76 to complete the sampling work. At the same time, the air in the sampling tube 74 can be discharged through the exhaust pipe 77 to ensure that the sampling work can proceed normally.

[0042] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 utility model can be understood according to specific circumstances.

[0044] The present invention is described above in conjunction with specific implementation methods, but it should be clear to those skilled in the art that these descriptions are exemplary and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on the spirit and principles of the present invention, and these modifications and variations are also within the scope of the present invention.

Claims

1. A sampling device capable of collecting samples at different depths, characterized in that: The invention comprises a holding rod (1), a rope winding drum (2) is rotatably arranged on the right side of the rear end of the holding rod (1), a rotatable tensioning wheel (3) is fixedly arranged just below the front of the holding rod (1), an end wheel (4) is fixedly arranged just above the front end of the holding rod (1), the end wheel (4) comprises a side bracket (41) fixedly connected to the side of the front end of the holding rod (1), a roller body (42) is rotatably arranged on the top of the side bracket (41) through a rotating shaft (43), a mounting frame (51) is fixedly arranged on the left side of the side bracket (41), an angle sensor (5) is fixedly arranged on the mounting frame (51), the shaft end of the angle sensor (5) is fixedly connected to the end of the rotating shaft (43), an oblique oblique through hole (11) is opened in the center of the front of the holding rod (1), a sling (6) is wound on the rope winding drum (2), and a sinking sampling mechanism (7) is fixedly connected to the end of the sling (6).

2. A sampling device capable of collecting samples at different depths according to claim 1, characterized in that: The sling (6) is laid along the length direction of the gripping rod (1), first passing around the lower end of the tensioning wheel (3), then passing through the oblique through hole (11), and finally passing around the upper end of the end wheel (4) and bending down.

3. A sampling device capable of collecting samples at different depths according to claim 1, characterized in that: The sinking sampling mechanism (7) comprises a sealed shell (71), a micro remote-controlled water pump (72) is fixedly arranged in the middle of the sealed shell (71), a water pump power supply battery (73) is fixedly arranged in the upper part of the sealed shell (71), and the water pump power supply battery (73) is electrically connected to the micro remote-controlled water pump (72).

4. A sampling device capable of collecting samples at different depths according to claim 3, characterized in that: An internal threaded mounting tube (711) is fixedly disposed in the center of the lower end surface of the sealed housing (71), and a sampling tube (74) is connected to the internal thread of the internal threaded mounting tube (711).

5. A sampling device capable of collecting samples at different depths according to claim 4, characterized in that: The input end interface of the micro remote-controlled water pump (72) is sealed connected to a water inlet pipe (75), the end of which is bent and extends out of the sealed housing (71); the output end interface of the micro remote-controlled water pump (72) is sealed connected to a water injection pipe (76), the end of which extends into the bottom of the sampling tube (74); an exhaust pipe (77) is sealed on the lower end plate of the sealed housing (71), one end of which is communicated with the internal space of the sampling tube (74), and the other end of which is bent and extends out of the sealed housing (71).

6. A sampling device capable of collecting samples at different depths according to claim 3, characterized in that: Connecting rods (781) are fixedly arranged at the four corners of the lower end surface of the sealed shell (71), a counterweight block (78) is fixedly connected to the bottom end of the connecting rod (781), and a suspension head (79) is centrally arranged on the upper end surface of the sealed shell (71).

7. A sampling device capable of collecting samples at different depths according to claim 1, characterized in that: A processing terminal (8) is fixedly arranged above the rear end of the holding rod (1), and the processing terminal (8) comprises a protective shell (81). A processing circuit board (82) is fixedly arranged inside the protective shell (81), and a wireless transmission circuit board (83) is electrically connected to the processing circuit board (82). A display module (84) and a terminal power supply battery (85) are fixedly arranged at the upper and lower parts of the protective shell (81), respectively, and the processing circuit board (82) is electrically connected to the display module (84) and the terminal power supply battery (85) through wires (86).

8. A sampling device capable of collecting samples at different depths according to claim 7, characterized in that: The angle sensor (5) is electrically connected to a data transmission line (52), and the data transmission line (52) is electrically connected to a processing circuit board (82).

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