A river sampling device for urban river ecological improvement research

Abstract

The present invention discloses a river sampling device for research on ecological improvement of urban inland rivers, and belongs to the technical field of ecological improvement. The present invention comprises a sampling cover tube, the outer surface of which is sleeved with an outer sleeve ring, the outer surface of which is provided with an operating handle, the top of which is connected with a piston block, the bottom of which is embedded in the sampling cover tube, and the bottom of which is provided with a blocking unit, and the bottom of which is provided with an impurity removal unit. In view of the shortcomings existing in the prior art, the present invention proposes to provide a river sampling device for research on ecological improvement of urban inland rivers, which can shield impurities inside the river body during sampling, prevent impurities from blocking the sampling port, and effectively improve the sampling efficiency of the device.

Description

Technical Field

[0001] The invention belongs to the technical field of ecological improvement, and more specifically, relates to a river body sampling device for research on ecological improvement of urban rivers. Background Art

[0002] The original tributaries of the outer river were formed into inner rivers due to the construction of flood control embankments around the city. With the development of urban industrialization, industrial sewage and domestic wastewater have increased dramatically, causing a large amount of nitrogen, phosphorus, COD and other pollutants to be discharged into the surrounding areas, polluting the inner rivers, and the silt at the bottom of the inner rivers cannot flow, turning the living water into dead water, and the dead water into smelly water, which seriously affects the quality of life of the surrounding residents. In response to this situation, governments of various countries are actively working to manage urban inner rivers, purify and beautify the water body on the premise of ensuring its flood discharge function, making it a beautiful landscape in the city.

[0003] The existing river sampling equipment cannot block the large impurities in the river when sampling the water quality of the river, resulting in large impurities often blocking the sampling port, resulting in low sampling efficiency of the device.

[0004] After searching, a large number of patents have been published about river sampling equipment. For example, the Chinese patent application number is: 202010683773X, and the name of the invention is: A water sampling device for river management. The application discloses a water sampling device for river management, including at least one sampling tube, a ring gear and a seal. The seal is slidably connected in the sampling tube, and two adjacent sampling tubes are detachably connected together through a connecting structure. A plurality of notches are radially opened on the sampling tube, and the notches are spaced evenly. The sampling tube is arranged at a distance, a plurality of connecting plates are welded on the outer wall of the sampling tube at equal intervals corresponding to the notches, a short shaft is rotatably installed vertically on the connecting plate, and a first gear is installed on the top of the short shaft. The present invention utilizes the characteristic of the sampling tube being through to reduce the interference of the sampling device on the upper water body, prevents too much upper water body from being pressed into the lower layer of the water body, and improves the accuracy of water body stratification; during the diving process of the sampling tube, the water body inside the sampling tube is separated from the external water body, which reduces the influence of the external water flow on the water body in the sampling tube, and improves the accuracy of water sampling.

[0005] Another example is the Chinese patent application number: 2019205223644, and the name of the invention is: A water sampling device for river management. The application discloses a river water sampling device, which belongs to the field of water quality monitoring technology, including a barrel body, a barrel cover nested on the top of the barrel body, a suspension rod movably connected to the upper end of the barrel body, a water pipe embedded in the lower end of the barrel body, a scale bar carved on the side of the barrel body, a suction rod slidingly provided at the center of the barrel cover, and a sleeve rod fixedly connected inside the barrel cover. This river water sampling device is provided with a barrel cover and a suction rod, and the suction rod slides in the sleeve rod to extract the air in the barrel body, so that a negative pressure environment is formed in the barrel body, and then the water is sucked into the barrel body by the water pipe, so as to achieve the purpose of convenient sampling.

[0006] The above solutions are all good explorations of river sampling equipment, but there is still room for further optimization, and the industry has never stopped exploring river sampling equipment. Summary of the invention

[0007] 1. Technical problem to be solved by the invention

[0008] In view of the shortcomings of the prior art, the present invention provides a river sampling device for use in urban river ecological improvement research, which can shield impurities inside the river body during sampling to prevent impurities from clogging the sampling port, thereby effectively improving the sampling efficiency of the device.

[0009] 2. Technical solution

[0010] To solve the above problems, the present invention adopts the following technical solutions.

[0011] The river sampling equipment for the study of ecological improvement of urban rivers of the present invention comprises a sampling cover tube, the outer surface of the sampling cover tube is sleeved with an outer sleeve ring, the outer surface of the outer sleeve ring is provided with an operating handle, the top of the operating handle is connected with a piston block, the bottom of the piston block is embedded in the sampling cover tube, and the bottom of the sampling cover tube is provided with a blocking unit, and the bottom of the blocking unit is provided with a de-impurity unit.

[0012] As a further improvement of the present invention, the blocking unit includes a plastic tube sleeve fixed to the bottom of the sampling cover tube, and a sieve plate matching the shape of the inner cavity of the plastic tube sleeve is arranged near the bottom end of the plastic tube sleeve.

[0013] As a further improvement of the present invention, an inner through hole is opened on the sieve plate, an internal spring is fixedly connected to the upper surface of the sieve plate, and a sealing cover plate for sealing the bottom of the sampling cover tube is fixedly connected to the top of the internal spring.

[0014] As a further improvement of the present invention, the impurity removal unit includes an elastic cover shell sleeved on the outer surface of the plastic tube sleeve, the elastic cover shell is a circular ring structure, and the elastic cover shell and the plastic tube sleeve are connected through a transmission connecting rod.

[0015] As a further improvement of the present invention, one end of the transmission connecting rod is rotatably connected to the outer surface of the bottom of the plastic tube sleeve, and the other end of the transmission connecting rod is connected to the outer edge of the elastic cover shell.

[0016] As a further improvement of the present invention, a plurality of external slots are evenly spaced around the circumference of the elastic cover shell, a rotating shaft is arranged in the external slot, a rotating rod unit is rotatably arranged on the rotating shaft, an end of the rotating rod unit away from the rotating shaft is connected to a bottom ring, and the bottom ring is located below the plastic tube sleeve.

[0017] As a further improvement of the present invention, the rotating rod unit includes a rotating rotating rod, one end of which is rotatably sleeved on the outer circumference of the rotating shaft, and the other end of which is connected to the bottom ring.

[0018] As a further improvement of the present invention, an external ring block with an annular structure is arranged on the rotating rod, wherein a vibration guide block is rotatably arranged inside the external ring block, and a spring piece is also arranged on the top of the inner surface of the external ring block. The spring piece is used to limit the top of the vibration guide block, and a notch is provided on the outer side of the external ring block, and a downwardly extending pulling hook is provided on the side of the vibration guide block close to the notch of the external ring block.

[0019] As a further improvement of the present invention, a plurality of installation grooves are evenly spaced apart along the length direction on both side edges of the rotating rod, and external ring blocks are installed in the installation grooves.

[0020] 3. Beneficial effects

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) The river sampling device for the study of ecological improvement of urban rivers of the present invention is that when the staff lifts the operating handle, the piston block 3 can be squeezed and moved downward into the sampling cover tube through the piston action, so that a negative pressure state is formed inside the sampling cover tube. At this time, the water flow in the river body to be sampled flows into the cavity between the sieve plate and the sealing cover plate from the inner through hole. The water flow continues to flow in and pushes the sealing cover plate upward. At this time, the sealing cover plate enters the sampling cover tube, and the water flow also flows into the sampling cover tube, so as to achieve the purpose of collecting river water samples. After the sampling is completed, the built-in spring pulls the sealing cover plate downward under the action of its own elastic force, completes the sealing of the bottom of the sampling cover tube, completes the overall sampling work, and effectively improves the sampling effect of the sampling device.

[0023] (2) The river sampling equipment used for the research on ecological improvement of urban rivers of the present invention has a plurality of rows of inner through holes evenly spaced around the circumference on the sieve plate, and each row of inner through holes is distributed along the radial direction of the sieve plate, which can ensure that the water in the river flows evenly from the inner through holes into the sampling cover tube, thereby ensuring the accuracy of the sampling results. At the same time, the inner through holes can intercept large impurities on the outside to prevent the impurities from clogging the sampling port, thereby effectively improving the sampling efficiency of the sampling device.

[0024] (3) The river sampling equipment used for the study of ecological improvement of urban rivers of the present invention can isolate large impurities on the surface of the river and inside the river when the sampling device is operating to take water, preventing large impurities from being adsorbed to the inner through hole and clogging the inner through hole, thereby effectively avoiding sampling restrictions and being suitable for sampling of different types of rivers.

[0025] (4) The river sampling equipment for the study of ecological improvement of urban rivers of the present invention can use a pulling hook to hook out the long flocculent impurities when there are long flocculent impurities in the water body, thereby preventing the long flocculent impurities from entering the sampling cover tube from the inner through hole, thereby effectively improving the sampling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a river sampling device for urban river ecological improvement research according to the present invention;

[0027] Figure 2 It is a structural schematic diagram of the blocking unit in the present invention;

[0028] Figure 3 It is a structural schematic diagram of the impurity removal unit in the present invention;

[0029] Figure 4 It is a structural schematic diagram of the transfer rod unit in the present invention.

[0030] In the figure:

[0031] 1. Operating handle; 2. Sampling cover tube; 3. Piston block; 4. Outer ring; 5. De-impurity unit; 51. Transmission connecting rod; 52. Elastic cover shell; 53. Rotating shaft; 54. External slot; 55. Bottom ring; 56. Rotating rod unit; 561. Rotating rotating rod; 562. Shrapnel; 563. Vibrating guide block; 564. Pull hook; 565. External ring block; 6. Blocking unit; 61. Plastic tube sleeve; 62. Internal spring; 63. Sieve plate; 64. Internal through hole; 65. Sealing cover plate. DETAILED DESCRIPTION

[0032] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] The present invention will be further described below in conjunction with the embodiments.

[0035] Example 1

[0036] Combination Figure 1-Figure 4 , a river sampling device for urban inland river ecological improvement research in this embodiment includes a sampling cover tube 2, the outer surface of the sampling cover tube 2 is provided with an outer sleeve 4, the outer sleeve 4 can move up and down along the outer circumference of the sampling cover tube 2, and the outer surface of the outer sleeve 4 is provided with an operating handle 1. Specifically, in this embodiment, the outer surface of the outer sleeve 4 is evenly spaced and provided with a plurality of operating handles 1, which are convenient for people to pull the sampling device upwards by hand, wherein the top of the operating handle 1 is connected to a piston block 3, and the bottom of the piston block 3 is embedded in the sampling cover tube 2, and the piston block 3 can move up and down inside the sampling cover tube 2, and the bottom of the sampling cover tube 2 is provided with a blocking unit 6 for sealing the bottom of the sampling cover tube 2, and the bottom of the blocking unit 6 is provided with a de-impurity unit 5 for removing impurities in the water body.

[0037] In this embodiment, the blocking unit 6 includes a plastic tube sleeve 61 fixed to the bottom of the sampling cover tube 2, and a sieve plate 63 matching the inner cavity shape of the plastic tube sleeve 61 is fixedly arranged near the bottom of the plastic tube sleeve 61. The sieve plate 63 is provided with an inner through hole 64. Specifically, in this embodiment, the sieve plate 63 is provided with multiple rows of inner through holes 64 evenly spaced around the circumference, and each row of inner through holes 64 is distributed along the radial direction of the sieve plate 63, which can ensure that the water flow in the river body flows evenly from the inner through holes 64 into the sampling cover tube 2, ensuring the accuracy of the sampling results. At the same time, the inner through holes 64 can intercept large impurities on the outside to prevent impurities from clogging the sampling port, effectively improving the sampling efficiency of the sampling device. The upper surface of the sieve plate 63 is fixedly connected with an internal spring 62, and the top of the internal spring 62 is fixedly connected with a blocking cover plate 65 for blocking the bottom of the sampling cover tube 2. There are multiple internal springs 62, which can ensure the stability of the connection between the sieve plate 63 and the blocking cover plate 65. In the present embodiment, when the staff lifts the operating handle 1, the piston block 3 can be squeezed and moved downward into the sampling cover tube 2 through the piston action, so that a negative pressure state is formed inside the sampling cover tube 2. At this time, the water flow in the river body to be sampled flows into the cavity between the sieve plate 63 and the blocking cover plate 65 from the inner through hole 64. The water flow continues to flow in and pushes the blocking cover plate 65 upward. At this time, the blocking cover plate 65 enters the sampling cover tube 2, and the water flow also flows into the sampling cover tube 2, so as to achieve the purpose of collecting river water samples. After the sampling is completed, the built-in spring 62 pulls the blocking cover plate 65 downward under the action of its own elastic force, completes the blocking of the bottom of the sampling cover tube 2, completes the overall sampling work, and effectively improves the sampling effect of the sampling device.

[0038] like Figure 3 As shown, in this embodiment, the impurity removal unit 5 includes an elastic cover 52 sleeved on the outer surface of the plastic tube sleeve 61, the elastic cover 52 is annular, and the elastic cover 52 and the plastic tube sleeve 61 are connected through a transmission connecting rod 51. There are multiple transmission connecting rods 51, which are evenly distributed on the outer periphery of the plastic tube sleeve 61, and can effectively ensure the stability of the connection of the elastic cover 52. One end of the transmission connecting rod 51 is rotatably connected to the outer surface of the bottom of the plastic tube sleeve 61, and the other end of the transmission connecting rod 51 is connected to the outer edge of the elastic cover 52. The elastic cover 52 is provided with a plurality of external slots 54 evenly spaced around the circumference, and a rotating shaft 53 is provided inside the external slot 54. The two ends of the rotating shaft 53 are respectively connected to the two inner side walls of the external slot 54. A rotating rod unit 56 is rotatably provided on the rotating shaft 53. The end of the rotating rod unit 56 away from the rotating shaft 53 is connected to a bottom ring 55, and the bottom ring 55 is located below the plastic tube sleeve 61. When the sampling device is used to take water, the elastic cover 52 and the bottom ring 55 can isolate large impurities on the surface of the river and inside the river body, prevent large impurities from being adsorbed to the inner through hole 64, avoid clogging the inner through hole 64, effectively avoid sampling restrictions, and are suitable for sampling of different types of river bodies.

[0039] like Figure 4 As shown, in this embodiment, the rotating rod unit 56 includes a rotating rotating rod 561, one end of which is rotatably sleeved on the outer periphery of the rotating shaft 53, and the other end of which is connected to the bottom ring 55. In this embodiment, an external ring block 565 with an annular structure is arranged on the rotating rotating rod 561, wherein a vibration guide block 563 is rotatably arranged inside the external ring block 565, and the vibration guide block 563 can have a certain degree of rotation freedom inside the external ring block 565. A spring piece 562 is also provided at the top of the inner surface of the external ring block 565, and the spring piece 562 is used to limit the top of the vibration guide block 563. Specifically, in this embodiment, the spring piece 562 is an L-shaped structure, and the spring piece 562 includes a vertical section that is fitted and fixed to the inner surface of the external ring block 565. A horizontal section is extended inward from the top of the vertical section. The horizontal section extends beyond the top edge of the vibration guide block 563 and is used to limit the vibration guide block 563 from above to prevent the vibration guide block 563 from detaching from the inside of the external ring block 565.

[0040] In this embodiment, a notch is provided on the outer side of the external ring block 565, and a pulling hook 564 extending downward is provided on the side of the notch of the external ring block 565 near the vibration guide block 563. When encountering hard impurities, the pulling hook 564 is turned up under the action of the water flow, and drives the vibration guide block 563 to rotate upward. At this time, the pulling hook 564 can be separated from the hard impurities below, avoiding damage to the pulling hook 564 by the hard impurities, and ensuring the safety and stability of the sampling equipment. Specifically, in this embodiment, a plurality of installation grooves are evenly spaced along the length direction on both sides of the rotating rotating rod 561, and the external ring block 565 is installed in the installation groove. When there are long flocculent impurities in the water body, the pulling hook 564 can hook the long flocculent impurities to prevent the long flocculent impurities from entering the sampling cover tube 2 from the inner through hole 64, effectively improving the sampling effect.

[0041] When the present embodiment is in operation, when the staff member lifts the operating handle 1, the piston block 3 causes the water inside the river body to flow into the sampling cover tube 2 from the inner through hole 64 through the piston action, thereby achieving a collection effect. When the staff member finishes collecting and sampling, the built-in spring 62 achieves a sealing effect through its own elastic force and in cooperation with the water pressure on the upper side of the sealing cover plate 65, thereby improving the sampling effect of the device. During the water sampling process of the sampling device, the elastic cover shell 52 and the bottom ring 55 can isolate large impurities on the surface of the river body and inside the river body, thereby preventing large impurities from being adsorbed to the inner through hole 64 and clogging the sampling port. When there are long flocculent impurities inside the water body, the pulling hook 564 can hook the long flocculent impurities, thereby preventing the long flocculent impurities from being introduced into the sampling cover tube 2 from the inner through hole 64, thereby effectively improving the sampling effect.

[0042] The examples described in the present invention are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solutions of the present invention by engineers and technicians in this field should all fall within the protection scope of the present invention.

Claims

1. A river sampling device for urban river ecological improvement research, characterized by: The sampling cover tube (2) comprises a sampling cover tube (2), the outer surface of the sampling cover tube (2) is sleeved with an outer ring (4), the outer surface of the outer ring (4) is provided with an operating handle (1), the top of the operating handle (1) is connected to a piston block (3), the bottom of the piston block (3) is embedded in the sampling cover tube (2), and the bottom of the sampling cover tube (2) is provided with a blocking unit (6), and the bottom of the blocking unit (6) is provided with a de-impurity unit (5); the blocking unit (6) comprises a plastic tube sleeve (61) fixed to the bottom of the sampling cover tube (2), and a sieve plate (63) matching the shape of the inner cavity of the plastic tube sleeve (61) is provided near the bottom end of the plastic tube sleeve (61); The impurity removal unit (5) comprises an elastic cover shell (52) sleeved on the outer surface of the plastic tube sleeve (61); the elastic cover shell (52) is in a circular ring structure, and the elastic cover shell (52) and the plastic tube sleeve (61) are connected via a transmission connecting rod (51); The elastic cover shell (52) is provided with a plurality of external slots (54) evenly spaced around the circumference, a rotating shaft (53) is provided in the external slot (54), a rotating rod unit (56) is rotatably provided on the rotating shaft (53), an end of the rotating rod unit (56) away from the rotating shaft (53) is connected to a bottom ring (55), and the bottom ring (55) is located below the plastic tube sleeve (61); The rotating rod unit (56) comprises a rotating rotating rod (561), one end of which is rotatably sleeved on the outer circumference of the rotating shaft (53), and the other end of which is connected to a bottom ring (55); The rotating rod (561) is provided with an annular external ring block (565), wherein a vibration guide block (563) is rotatably arranged inside the external ring block (565), and a spring sheet (562) is also arranged on the top of the inner surface of the external ring block (565), and the spring sheet (562) is used to limit the top of the vibration guide block (563), and a notch is provided on the outer side of the external ring block (565), and a pulling hook (564) extending downward is provided on the side of the vibration guide block (563) close to the notch of the external ring block (565).

2. A river sampling device for urban river ecological improvement research according to claim 1, characterized in that: An inner through hole (64) is formed on the sieve plate (63); an inner spring (62) is fixedly connected to the upper surface of the sieve plate (63); and a sealing cover plate (65) for sealing the bottom of the sampling cover tube (2) is fixedly connected to the top of the inner spring (62).

3. A river sampling device for urban river ecological improvement research according to claim 2, characterized in that: One end of the transmission connecting rod (51) is rotatably connected to the outer surface of the bottom of the plastic tube sleeve (61), and the other end of the transmission connecting rod (51) is connected to the outer edge of the elastic cover shell (52).

4. A river sampling device for urban river ecological improvement research according to claim 3, characterized in that: A plurality of installation grooves are provided at intervals along the length direction on both side edges of the rotating rod (561), and external ring blocks (565) are installed in the installation grooves.

Images