River water quality sampling equipment

Abstract

The utility model relates to the technical field of water quality sampling, in particular to riverway water quality sampling equipment which comprises an installation pipe, a sampling device is installed on a pipe body of the installation pipe through a hoop, a protective shell is arranged outside the sampling device in a covering mode, and the protective shell is connected with the installation pipe in a rotating mode. The protective shell is formed by splicing two semicircular shells which are arranged in a mirror symmetry mode, a plurality of flow guide holes are formed in the surfaces of the shells in a penetrating mode, rotating parts are further arranged on the surfaces of the shells, and when river water flows through the rotating parts, different pressures can be generated at different positions of the surfaces of the shells; and then rotating torque is generated to drive the shell to rotate relative to the mounting pipe. Compared with a traditional method, according to the technical scheme, the sampling device is covered with the protective shell capable of automatically rotating under the action of the water flow, the self-rotation energy of the protective shell comes from the pressure generated by the surface of the protective shell when the water flow passes through the rotating part, the surrounding water flow can be disturbed through automatic rotation of the protective shell, and therefore the water sample can be collected more uniformly.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality sampling, in particular to a river water quality sampling device. Background Art

[0002] In the existing technology, fixed-point water quality sampling in rivers, lakes, seas or pools is mostly done by using a steel wire to place a micro water pump underwater. This has poor sampling accuracy because the micro water pump will drift with the water flow, making it impossible to complete fixed-point sampling.

[0003] The patent document with the patent publication number: CN108613843A discloses a river water quality sampling device, including a sampling boat and a threaded rod, a water pump and a fixing plate are fixed on the top of the sampling boat, a water pipe is fixedly connected to the water inlet of the water pump, a solenoid valve is installed on the outside of the water pipe, the fixing plate is an L-shaped structure, a mounting hole, a connecting hole and a through hole are opened on the top of the fixing plate, and the through hole and the connecting hole are respectively located on both sides of the mounting hole, a threaded sleeve is arranged inside the mounting hole, both ends of the threaded sleeve extend to the outside of the mounting hole, a spring hole is opened on one side of the mounting hole close to the connecting hole, a spring and a clamping block are arranged inside the spring hole, an adjusting column is welded on one side of the clamping block, and the connecting hole is connected to the spring hole. The utility model has reasonable structure, ingenious design, simple operation, and solves the defect of inaccurate fixed-point sampling of water quality samplers in the prior art.

[0004] Although the above scheme can achieve fixed-point sampling during river sampling, since there are various types of sediments and garbage at different depths of the sampled river water, if these debris cover or hit the outside of the sampler, not only will river water sampling fail, but the sampler may also be damaged. Utility Model Content

[0005] In order to overcome the above-mentioned technical problems, the purpose of the utility model is to provide a river water quality sampling device, which solves the problem that when sampling river water quality, the sampler is easily interfered by impurities in the river water and sampling cannot be carried out smoothly.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A river water quality sampling device comprises a mounting pipe, a sampling device is mounted on the pipe body of the mounting pipe through a clamp, a protective shell is provided on the outer cover of the sampling device, the protective shell is rotatably connected to the mounting pipe, the protective shell is composed of two semicircular shells arranged in mirror symmetry, a plurality of guide holes are opened through the surface of the shell, a rotating part is also provided on the surface of the shell, when river water flows through the rotating part, pressures of different magnitudes are generated at different positions on the surface of the shell, and then a rotation torque is generated to drive the shell to rotate about the mounting pipe;

[0008] The sampling device includes an electronic valve installed on a clamp and a sampling bottle. When the installation pipe dives to a designated position in the river channel, after the electronic valve is opened, river water is sucked into the sampling bottle under the action of negative pressure.

[0009] Furthermore, the installation tube is a hollow round tube.

[0010] Furthermore, a semicircular groove is provided at the connection between the outer shell and the mounting tube, the radius of the groove matches the radius of the mounting tube, a plurality of ball bearings are arranged in the groove for equal angle rotation, and limiting rings are provided on the surface of the tube body of the mounting tube at positions above and below the groove corresponding to the positions.

[0011] Furthermore, the fitting surfaces of the two shells are penetrated with through holes, and the two shells are spliced ​​together by screws in the through holes.

[0012] Furthermore, the rotating part includes a plurality of wing plates installed on the surface of the shell at equal intervals.

[0013] Furthermore, the rotating portion includes a plurality of grooves which are evenly spaced and arranged on the surface of the shell.

[0014] Furthermore, it also includes an extension tube, the extension tube and the installation tube have the same tube diameter, and the ends of the extension tube and the installation tube are both provided with connecting ears, and two adjacent connecting ears are connected by screws, thereby realizing a closed docking between the extension tube and the installation tube.

[0015] Furthermore, the invention further comprises a motor, wherein the motor is used for driving the mounting tube to rise or fall.

[0016] Furthermore, there are at least two motors, the two motors are arranged in mirror symmetry with respect to the mounting tube, the output ends of the motors are connected to rollers, and the two rollers are both rollingly connected to the surface of the mounting tube.

[0017] Furthermore, a rack is provided on the surface of the mounting tube in its length direction, and a gear is connected to the output end of the motor, and the gear is meshed and transmission-connected with the rack.

[0018] Beneficial effects of the utility model:

[0019] Compared with the traditional method, the technical solution covers the outside of the sampling device with a protective shell that can automatically rotate under the action of water flow. The rotation energy of the protective shell comes from the pressure generated on the surface of the protective shell when the water flows through the rotating part. On the one hand, the automatic rotation of the protective shell can disturb the surrounding water flow, thereby collecting water samples more evenly, which can avoid the situation where the collected water samples are uneven due to the fixed sampling device. On the other hand, installing an automatically rotating protective shell can reduce the interference of impurities in the water on the collection to a certain extent, and avoid impurities hitting or clogging the sampling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a three-dimensional view of the utility model;

[0022] Figure 2 It is a three-dimensional view of the installation pipe in the utility model;

[0023] Figure 3 It is a three-dimensional view of the electronic valve and the sampling bottle in the utility model;

[0024] Figure 4 It is a three-dimensional view of the first housing in the utility model;

[0025] Figure 5 It is a three-dimensional view of the second housing in the utility model;

[0026] Figure 6 It is a three-dimensional view of the extension tube and the installation tube in the utility model spliced ​​together;

[0027] Figure 7 This is a schematic diagram of the first driving method of the installation pipe in the utility model;

[0028] Figure 8 It is a schematic diagram of the second driving mode of the installation pipe in the utility model.

[0029] In the figure: 1. mounting tube; 11. limiting ring; 2. housing; 21. perforation; 22. flow guide hole; 23. slot; 24. ball bearing; 3. wing plate; 4. clamp; 41. electronic valve; 42. sampling bottle; 5. groove; 6. extension tube; 61. connecting ear; 7. motor; 71. roller; 72. gear; 8. rack. DETAILED DESCRIPTION

[0030] The following will be combined with 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 of 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.

[0031] Embodiment 1:

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, a river water quality sampling device comprises a mounting pipe 1, a sampling device is mounted on the pipe body of the mounting pipe 1 through a clamp 4, and the sampling device comprises an electronic valve 41 and a sampling bottle 42 mounted on the clamp 4. When the mounting pipe 1 is submerged to a designated position of the river, after the electronic valve 41 is opened, river water is sucked into the sampling bottle 42 under the action of negative pressure;

[0033] A protective shell is provided on the outer cover of the sampling device, and the protective shell is rotatably connected to the mounting tube 1. The protective shell is composed of two semicircular shells 2 that are arranged in a mirror-symmetrical manner. A plurality of guide holes 22 are opened through the surface of the shell 2, and the external water flow can contact the sampling device through the guide holes 22. A rotating part is also provided on the surface of the shell 2. When the river water flows through the rotating part, pressures of different sizes will be generated at different positions on the surface of the shell 2, thereby generating a rotational torque to drive the shell 2 to rotate about the mounting tube 1.

[0034] like Figure 1 , Figure 2 As shown, the installation pipe 1 is a hollow round pipe, so that the resistance is small when the installation pipe 1 dives and rises.

[0035] like Figure 3 , Figure 4 As shown, a semicircular groove 23 is provided at the connection between the outer shell 2 and the mounting tube 1, and the radius of the groove 23 matches the radius of the mounting tube 1. A plurality of ball bearings 24 are arranged in the groove 23 for equal angle rotation. The tube body surface of the mounting tube 1 is provided with limit rings 11 at positions above and below the groove 23 corresponding to the positions. After the two outer shells 2 embrace the mounting tube 1 between them, the limit rings 11 will limit the outer shell 2 to prevent it from shaking along the mounting tube 1. At the same time, the outer shell 2 is rollingly connected to the surface of the mounting tube 1 through the ball bearings 24. When the outer shell 2 rotates in water, it is smoother and the rotation resistance is reduced.

[0036] like Figure 3 , Figure 4As shown, the mating surfaces of the two shells 2 are penetrated with through holes 21, and the two shells 2 are spliced ​​together by screws in the through holes 21. In addition, the two shells 2 can also be connected together by snap-fitting.

[0037] like Figure 4 As shown, the rotating part includes a plurality of wing plates 3 installed at equal intervals on the surface of the outer shell 2. The inner diameter of the wing plate 3 matches the outer diameter of the outer shell 2, and the outer contour of the wing plate 3 is arc-shaped, so as to minimize the probability of the wing plate 3 colliding with impurities in the water. When the river water flows through the wing plate 3 on the surface of the outer shell 2, different pressures will be generated on both sides of the outer shell 2 corresponding to the wing plate 3 under the action of the water flow, thereby forming a rotational torque. This rotational torque will cause the protective shell itself to produce a rotational motion, thereby achieving an automatic rotation effect.

[0038] like Figure 6 As shown, it also includes an extension tube 6, the extension tube 6 and the mounting tube 1 have the same diameter, and the ends of the extension tube 6 and the mounting tube 1 are both provided with connecting ears 61, and two adjacent connecting ears 61 are connected by screws, thereby realizing a closed docking between the extension tube 6 and the mounting tube 1. According to the different water depths required for sampling, multiple extension tubes 6 can be connected in sequence, thereby increasing the water depth that the sampling device can reach.

[0039] like Figure 7 As shown, it also includes a motor 7, which is used to drive the mounting tube 1 to rise or fall. In this embodiment, there are at least two motors 7, and the two motors 7 are arranged in mirror symmetry with respect to the mounting tube 1. The output end of the motor 7 is connected to a roller 71, and the two rollers 71 are both rollingly connected to the surface of the mounting tube 1, thereby driving the mounting tube 1 to rise or fall with respect to the roller 71, and a groove is formed in the middle of the roller 71 to match the outer diameter of the mounting tube 1, so as to prevent the mounting tube 1 from separating from the roller 71.

[0040] In this scheme, a protective shell is provided on the outside of the sampling device, which can automatically rotate under the action of water flow. The rotation energy of the protective shell comes from the pressure generated on the surface of the protective shell when the water flows through the rotating part. On the one hand, the automatic rotation of the protective shell can disturb the surrounding water flow, so that the water sample can be collected more evenly, which can avoid the situation where the water sample collected is uneven due to the fixed sampling device. On the other hand, the installation of an automatically rotating protective shell can reduce the interference of impurities in the water on the collection to a certain extent, and avoid impurities hitting or clogging the sampling device.

[0041] Embodiment 2:

[0042] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, a river water quality sampling device includes a mounting pipe 1, a sampling device is installed on the pipe body of the mounting pipe 1 through a clamp 4, and the sampling device includes an electronic valve 41 and a sampling bottle 42 installed on the clamp 4. When the mounting pipe 1 dives to a specified position of the river, after the electronic valve 41 is opened, the river water is sucked into the sampling bottle 42 under the action of negative pressure. Compared with the first embodiment, the difference of this embodiment is that:

[0043] like Figure 5 As shown, the rotating part includes a plurality of grooves 5 equally spaced on the surface of the shell 2. The effect of the grooves 5 is similar to that of the wing plates 3. Both utilize the uneven pressure distribution of the water flow on the surface of the shell 2, thereby generating a rotational torque, causing the shell 2 itself to generate a rotational motion. This principle is similar to the principle of a windmill rotating under the action of wind.

[0044] Embodiment three:

[0045] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, a river water quality sampling device includes a mounting pipe 1, a sampling device is installed on the pipe body of the mounting pipe 1 through a clamp 4, and the sampling device includes an electronic valve 41 and a sampling bottle 42 installed on the clamp 4. When the mounting pipe 1 dives to a specified position of the river, after the electronic valve 41 is opened, the river water is sucked into the sampling bottle 42 under the action of negative pressure. Compared with the first embodiment, the difference of this embodiment is that:

[0046] like Figure 8 As shown, a rack 8 is provided on the surface of the mounting tube 1 along its length direction, and a gear 72 is connected to the output end of the motor 7. The gear 72 is meshingly connected to the rack 8 for transmission. Compared with the rolling connection between the roller 71 and the outer surface of the mounting tube 1 in the first embodiment, the meshing transmission connection of the gear 72 has a higher transmission energy efficiency ratio, and the mounting tube 1 can rise and dive more smoothly.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] The above contents are merely examples and explanations of the present utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the present utility model.

Claims

1. A river water quality sampling device, comprising a mounting pipe, a sampling device being mounted on the pipe body of the mounting pipe through a clamp, characterized in that: A protective shell is provided on the outer cover of the sampling device, and the protective shell is rotatably connected to the mounting tube. The protective shell is composed of two semicircular shells arranged in mirror symmetry, and a plurality of guide holes are opened through the surface of the shell. A rotating part is also provided on the surface of the shell. When river water flows through the rotating part, pressures of different magnitudes are generated at different positions on the surface of the shell, thereby generating a rotation torque to drive the shell to rotate about the mounting tube. The sampling device includes an electronic valve installed on a clamp and a sampling bottle. When the installation pipe dives to a designated position in the river channel, after the electronic valve is opened, river water is sucked into the sampling bottle under the action of negative pressure.

2. A river water quality sampling device according to claim 1, characterized in that: The installation tube is a hollow round tube.

3. A river water quality sampling device according to claim 1, characterized in that: A semicircular slot is provided at the connection between the shell and the mounting tube, the radius of the slot matches the radius of the mounting tube, a plurality of ball bearings are arranged in the slot for equal angle rotation, and limiting rings are provided on the surface of the mounting tube body corresponding to the positions above and below the slot.

4. A river water quality sampling device according to claim 1, characterized in that: The fitting surfaces of the two shells are both penetrated with through holes, and the two shells are spliced ​​together by screws in the through holes.

5. A river water quality sampling device according to claim 1, characterized in that: The rotating part includes a plurality of wing plates installed at equal intervals on the surface of the housing.

6. A river water quality sampling device according to claim 1, characterized in that: The rotating part includes a plurality of grooves which are arranged at equal intervals on the surface of the shell.

7. A river water quality sampling device according to claim 1, characterized in that: It also includes an extension tube, which has the same diameter as the mounting tube. The ends of the extension tube and the mounting tube are both provided with connecting ears, and two adjacent connecting ears are connected by screws, thereby achieving a closed docking between the extension tube and the mounting tube.

8. A river water quality sampling device according to claim 1, characterized in that: It also includes a motor, which is used to drive the installation pipe to rise or fall.

9. A river water quality sampling device according to claim 8, characterized in that: There are at least two motors, which are arranged in mirror symmetry with respect to the mounting tube. Rollers are connected to the output ends of the motors, and both rollers are rollingly connected to the surface of the mounting tube.

10. A river water quality sampling device according to claim 8, characterized in that: A rack is arranged on the surface of the mounting tube in its length direction, and a gear is connected to the output end of the motor, and the gear is meshed and transmission-connected with the rack.

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