River water quality sampling device

Abstract

The utility model discloses a riverway water quality sampling device which comprises a negative pressure pipe, a one-way mechanism is arranged on the negative pressure pipe, the one-way mechanism comprises a pressure adjusting mechanism, a middle pipe, a one-way pipe, a collecting pipe, an external connecting pipe, a sealing mechanism, a sealing plug, an adjusting pipe and a threaded ring, and the adjusting mechanism is installed on the negative pressure pipe. The one-way mechanism can ensure that a water sample flows in one way in the sampling process, external pollutants are effectively prevented from entering, through cooperative work of a one-way pipe, a bearing disc, a sealing groove and an adjusting disc, the mechanism allows the water sample to flow into the collecting pipe in one way from a riverway in the sampling process, and meanwhile the external pollutants are prevented from entering the collecting pipe through reverse flowing; therefore, the purity of the water sample and the reliability of the sampling process are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of river water quality sampling, and more specifically, it relates to a river water quality sampling device. Background Art

[0002] In the existing technology, the river water quality sampling device is an important tool for collecting water samples for water quality detection and analysis. However, in the actual use process, these devices have certain limitations, especially the pollution problems that may occur during the sampling process. When the existing river water quality sampling devices are sampling, the collection pipe is usually in two-way communication with the external environment, which means that during the sampling process, external pollutants may enter the collection pipe, thus polluting the water sample. This kind of pollution may affect the accuracy of the water quality detection results, and further affect the judgment of the river water quality status and subsequent environmental protection decisions.

[0003] The problem of two-way communication is mainly reflected in the structural design of the sampling device. In the traditional sampling device, one end of the sampling pipe or the collection pipe is usually directly exposed to the external environment, while the other end is used to collect water samples. This design makes it possible that when sampling, not only the water sample is drawn from the river into the collection pipe, but also external pollutants may enter the collection pipe through the open end and mix with the water sample. Especially when the surrounding environment of the river is relatively complex and there are many potential pollution sources, this two-way communication design becomes an important hidden danger for the accuracy and reliability of water quality sampling. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the problems existing in the prior art, the utility model provides a river water quality sampling device to solve the technical problems mentioned in the background art.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solution: a river water quality sampling device, including a negative pressure pipe, a one-way mechanism is arranged on the negative pressure pipe, the one-way mechanism includes a pressure regulating mechanism, an intermediate pipe, a one-way pipe, a collection pipe, an external connection pipe, a sealing mechanism, a sealing plug, an adjusting pipe and a threaded ring. The adjusting mechanism is installed on the negative pressure pipe, the intermediate pipe is respectively connected to the negative pressure pipe and the one-way pipe, the external connection pipe is installed on the one-way pipe, the collection pipe is threadedly connected to the external connection pipe, the sealing mechanism is installed in the one-way pipe, the threaded ring is coaxially installed in the one-way pipe, the adjusting pipe is threadedly connected to the threaded ring, the sealing plug is installed on the adjusting pipe, and the sealing plug fits against the inner wall of the one-way pipe.

[0008] The present utility model is further configured such that the sealing mechanism includes a receiving disk and a one-way disk. The receiving disk is installed inside the one-way tube. A sealing groove is provided on the receiving disk, and the one-way disk fits into the sealing groove. The design of the sealing mechanism ensures the sealing effect.

[0009] The present utility model is further configured such that a regulating rod is coaxially provided on the one-way disk. The regulating rod is slidably connected inside the sealing plug and the regulating tube. A regulating disk is installed on the regulating rod. The design of the regulating rod ensures the continuity of regulation.

[0010] The present utility model is further configured such that a push spring is sleeved on the regulating rod. A middle hole is provided on the sealing plug. Two ends of the push spring respectively abut against the one-way disk and inside the middle hole. The design of the push spring ensures the generation of sealing force.

[0011] The present utility model is further configured such that a plurality of anti-slip grooves are provided on the side wall of the regulating tube. The plurality of anti-slip grooves are respectively arranged at equal intervals. The design of the anti-slip grooves ensures that the regulating tube is convenient to rotate.

[0012] The present utility model is further configured such that the pressure regulating mechanism includes a sealing disk, a pull rod and a handle. The sealing disk is installed on the negative pressure tube. The pull rod is slidably connected inside the sealing disk. The handle is installed on the pull rod. The design of the pressure regulating mechanism ensures the continuity of regulation.

[0013] The present utility model is further configured such that a piston is coaxially provided on the pull rod. The piston fits against the inner wall of the negative pressure tube. The design of the piston ensures the generation of negative pressure.

[0014] The present utility model is further configured such that a semi-circular block is provided on the pull rod. The semi-circular block fits against the inner wall of the negative pressure tube. A communication hole is provided on the negative pressure tube. The communication hole communicates between the middle tube and the negative pressure tube. The design of the semi-circular block ensures the sealing effect.

[0015] (III) Advantageous effects

[0016] Compared with the prior art, the present utility model provides a river water quality sampling device, which has the following

[0017] Advantageous effects:

[0018] 1. The one-way mechanism can ensure the one-way flow of water samples during the sampling process, effectively preventing the entry of external pollutants. Through the coordinated operation of the one-way tube, the receiving disk, the sealing groove and the regulating disk, this mechanism allows water samples to flow unidirectionally from the river into the collection tube during sampling, while preventing external pollutants from entering the collection tube through reverse flow, thereby improving the purity of the water samples and the reliability of the sampling process.

[0019] 2. The sealing mechanism provides an adjustable sealing method. Through the cooperation of the sealing plug, sealing groove, push spring and anti-slip groove, this mechanism can provide complete sealing when needed to prevent any external contaminants from entering the collection tube. Especially after the sampling is completed, the sealing plug can completely close the external tube to ensure that the collected water samples will not be contaminated by the outside world, thereby ensuring the accuracy and effectiveness of the sampling results.

[0020] 3. The pressure regulating mechanism ensures that the water sample can be effectively sucked into the collection tube. Through the coordinated action of the sealing disk, pull rod, handle, piston and semicircular block, the pressure regulating mechanism can generate sufficient negative pressure during sampling, so that the water sample can flow smoothly into the collection tube. In addition, through the design of the semicircular block, the pressure regulating mechanism can also achieve sealing between the intermediate tube and the negative pressure tube to prevent contamination in the non-sampling state, thereby improving the overall performance and applicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of a river water quality sampling device in the utility model;

[0022] Figure 2 For the utility model Figure 1 A schematic cross-sectional structure diagram of;

[0023] Figure 3 It is a schematic cross-sectional structure diagram of the one-way tube in the utility model;

[0024] Figure 4 It is a structural schematic diagram of the sealing plug in the utility model;

[0025] Figure 5 It is a structural schematic diagram of the one-way pipe in the utility model.

[0026] In the figure: 1. negative pressure tube; 2. middle tube; 3. one-way tube; 4. collecting tube; 5. external tube; 6. sealing plug; 7. adjusting tube; 8. threaded ring; 9. receiving plate; 10. one-way plate; 11. sealing groove; 12. adjusting rod; 13. push spring; 14. middle hole; 15. anti-skid groove; 16. sealing plate; 17. pull rod; 18. handle; 19. piston; 20. semicircular block; 21. connecting hole; 101. adjusting plate. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0029] In the present utility model, unless otherwise specified, the directions such as "upper" and "lower" generally refer to the directions shown in the drawings, or to the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left" and "right" generally refer to the left and right shown in the drawings; "inner" and "outer" refer to the inner and outer of the contour of each component itself, but the above orientation terms are not used to limit the present utility model.

[0030] Please refer to Figures 1-5 , a river water quality sampling device, including a negative pressure pipe 1, a one-way mechanism is arranged on the negative pressure pipe 1, the one-way mechanism includes a pressure regulating mechanism, an intermediate pipe 2, a one-way pipe 3, a collecting pipe 4, an external connecting pipe 5, a sealing mechanism, a sealing plug 6, an adjusting pipe 7 and a threaded ring 8. The adjusting mechanism is installed on the negative pressure pipe 1. The intermediate pipe 2 is respectively connected to the negative pressure pipe 1 and the one-way pipe 3. The external connecting pipe 5 is installed on the one-way pipe 3. The collecting pipe 4 is threadedly connected to the external connecting pipe 5. The sealing mechanism is installed in the one-way pipe 3. The threaded ring 8 is coaxially installed in the one-way pipe 3. The adjusting pipe 7 is threadedly connected to the threaded ring 8. The sealing plug 6 is installed on the adjusting pipe 7, and the sealing plug 6 fits on the inner wall of the one-way pipe 3. The sealing mechanism includes a receiving disc 9 and a one-way disc 10. The receiving disc 9 is installed in the one-way pipe 3. A sealing groove 11 is formed on the receiving disc 9. The one-way disc 10 fits in the sealing groove 11. An adjusting rod 12 is coaxially arranged on the one-way disc 10. The adjusting rod 12 is slidably connected in the sealing plug 6 and the adjusting pipe 7. An adjusting disc 101 is installed on the adjusting rod 12. A push spring 13 is sleeved on the adjusting rod 12. A middle hole 14 is formed in the sealing plug 6. Two ends of the push spring 13 respectively abut against the one-way disc 10 and the middle hole 14. A plurality of anti-slip grooves 15 are formed on the side wall of the adjusting pipe 7, and the plurality of anti-slip grooves 15 are respectively arranged at equal intervals.

[0031] In this embodiment, when water is inhaled from the negative pressure pipe 1, the adjusting disc 101 should be pulled at the same time, so that the seal between the one-way disc 10 and the sealing groove 11 is released, and then the water flows into the collecting pipe 4 through the receiving disc 9. When it is necessary to adjust the sealing pressure of the one-way disc 10, by pinching the anti-slip grooves 15, and then driving the adjusting pipe 7 and the threaded ring 8 to rotate, the push spring 13 can be compressed, and then the elastic force of the push spring 13 can be changed, so as to adjust the sealing force of the one-way disc 10. When it is necessary to completely seal, the sealing plug 6 is further rotated towards the position of the one-way disc 10, so that the sealing plug 6 completely blocks the external connecting pipe 5, and the sealing plug 6 presses on the one-way disc 10, thus completing the sealing process.

[0032] Please refer to Figure 1 and Figure 2, as an implementation of the pressure regulating mechanism: The pressure regulating mechanism includes a sealing disk 16, a pull rod 17 and a handle 18. The sealing disk 16 is installed on the negative pressure pipe 1. The pull rod 17 is slidably connected within the sealing disk 16. The handle 18 is installed on the pull rod 17. A piston 19 is coaxially provided on the pull rod 17. The piston 19 fits against the inner wall of the negative pressure pipe 1. A semi-circular block 20 is provided on the pull rod 17. The semi-circular block 20 fits against the inner wall of the negative pressure pipe 1. A communication hole 21 is opened on the negative pressure pipe 1. The communication hole 21 communicates between the intermediate pipe 2 and the negative pressure pipe 1.

[0033] More specifically, when sampling is required, the handle 18 is used to drive the pull rod 17 to be pulled upward. Then, a negative pressure is generated in the negative pressure pipe 1 through the piston 19, causing water to be sucked into the collection pipe 4, thus completing the sampling process. Usually, when the two need to be sealed, the semi-circular block 20 is moved to the position of the communication hole 21, and then the communication hole 21 is blocked by the semi-circular block 20, thereby separating the intermediate pipe 2 and the negative pressure pipe 1, and further ensuring the sealing process.

[0034] In summary, during the use or operation of the overall device: When water is sucked in from the negative pressure pipe 1, the adjusting disk 101 should be pulled simultaneously, so that the seal between the one-way disk 10 and the sealing groove 11 is released, and then the water flows into the collection pipe 4 through the receiving disk 9. When the sealing pressure of the one-way disk 10 needs to be adjusted, by pinching the anti-slip groove 15 and then driving the adjusting pipe 7 and the threaded ring 8 to rotate, the push spring 13 can be compressed, and then the elastic force of the push spring 13 can be changed, thereby adjusting the sealing force of the one-way disk 10. When complete sealing is required, the sealing plug 6 is further rotated towards the position of the one-way disk 10, so that the sealing plug 6 completely blocks the outer connecting pipe 5 and presses on the one-way disk 10, thus completing the sealing process.

[0035] When sampling is required, the handle 18 is used to drive the pull rod 17 to be pulled upward. Then, a negative pressure is generated in the negative pressure pipe 1 through the piston 19, causing water to be sucked into the collection pipe 4, thus completing the sampling process. Usually, when the two need to be sealed, the semi-circular block 20 is moved to the position of the communication hole 21, and then the communication hole 21 is blocked by the semi-circular block 20, thereby separating the intermediate pipe 2 and the negative pressure pipe 1, and further ensuring the sealing process.

[0036] Among all the solutions mentioned above, for the connection between two components, welding, the connection of bolts and nuts, bolt or screw connection, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. For all the cases of fixed connection mentioned above, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A river water quality sampling device, comprising a negative pressure tube (1), characterized in that: The negative pressure pipe (1) is provided with a one-way mechanism, and the one-way mechanism comprises a pressure regulating mechanism, an intermediate pipe (2), a one-way pipe (3), a collecting pipe (4), an external pipe (5), a sealing mechanism, a sealing plug (6), an adjusting pipe (7) and a threaded ring (8). The pressure regulating mechanism is installed on the negative pressure pipe (1), the intermediate pipe (2) is connected to the negative pressure pipe (1) and the one-way pipe (3) respectively, the external pipe (5) is installed on the one-way pipe (3), the collecting pipe (4) is threadedly connected to the external pipe (5), the sealing mechanism is installed in the one-way pipe (3), the threaded ring (8) is coaxially installed in the one-way pipe (3), the adjusting pipe (7) is threadedly connected in the threaded ring (8), the sealing plug (6) is installed on the adjusting pipe (7), and the sealing plug (6) is attached to the inner wall of the one-way pipe (3).

2. A river water quality sampling device according to claim 1, characterized in that: The sealing mechanism comprises a receiving plate (9) and a one-way plate (10); the receiving plate (9) is installed in the one-way tube (3); a sealing groove (11) is provided on the receiving plate (9); and the one-way plate (10) is fitted in the sealing groove (11).

3. A river water quality sampling device according to claim 2, characterized in that: An adjusting rod (12) is coaxially arranged on the one-way disk (10), the adjusting rod (12) is slidably connected in the sealing plug (6) and the adjusting tube (7), and the adjusting disk (101) is mounted on the adjusting rod (12).

4. A river water quality sampling device according to claim 3, characterized in that: The adjusting rod (12) is sleeved with a push spring (13), the sealing plug (6) is provided with a middle hole (14), and the two ends of the push spring (13) respectively abut against the one-way disk (10) and the middle hole (14).

5. A river water quality sampling device according to claim 4, characterized in that: A plurality of anti-slip grooves (15) are provided on the side wall of the regulating tube (7), and the plurality of anti-slip grooves (15) are arranged at equal distances.

6. A river water quality sampling device according to claim 1, characterized in that: The pressure regulating mechanism comprises a sealing disk (16), a pull rod (17) and a handle (18); the sealing disk (16) is mounted on the negative pressure tube (1); the pull rod (17) is slidably connected inside the sealing disk (16); and the handle (18) is mounted on the pull rod (17).

7. A river water quality sampling device according to claim 6, characterized in that: A piston (19) is coaxially arranged on the pull rod (17), and the piston (19) is fitted on the inner wall of the negative pressure tube (1).

8. A river water quality sampling device according to claim 7, characterized in that: The pull rod (17) is provided with a semicircular block (20), which is attached to the inner wall of the negative pressure tube (1). The negative pressure tube (1) is provided with a connecting hole (21), which is connected to the intermediate tube (2) and the negative pressure tube (1).

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