Multi-point sampling device for water environment detection
By adopting an inverted L-shaped handle and airless sampling cylinder structure in the multi-point sampling device for water environment detection, combining water absorption column, drain valve and check valve, air-free sampling is achieved, and the buoyancy problem of the sampling cylinder is solved and the buoyancy problem is reduced. The operation difficulty is achieved.
Patent Information
- Application Number
- CN202420475840.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-12
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-03-12
AI Technical Summary
During the sampling process, the existing multi-point sampling device for water environment detection increases buoyancy and increases operational difficulty, which affects the use efficiency.
A multi-point sampling device including an inverted L-shaped handle and an airless sampling cylinder structure is designed. The combination of a water absorption column, a drain valve and a check valve are used to achieve air-free sampling by evacuating the air and reducing the influence of buoyancy.
It effectively avoids the buoyancy problem of the sampling barrel, reduces the difficulty of operation, and makes it easier for operators to control the device to perform multi-point sampling.
Smart Images
Figure CN222280214U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of water environment detection, and particularly relates to a multi-point sampling device for water environment detection. Background Art
[0002] A multi-point sampling device for water environment detection is a device that can collect water samples at different depths in river water, such as a multi-point sampling device for water environment detection with announcement number CN219434400U, which includes a fixed plate, a square rod is rotatably provided at the bottom of the fixed plate, a plurality of sampling cylinders are provided on the outer wall of the square rod, and a drain pipe is connected to the side wall of the sampling cylinder. There are still some problems in the actual use of the multi-point sampling device, such as: because the sampling cylinder contains a large amount of air, when the sampling cylinder enters the river water, it will be subject to a large buoyancy, and then the operator will find it difficult to control the device, which greatly increases the difficulty of the operator in using the multi-point sampling device. Utility Model Content
[0003] In order to solve the above-mentioned technical problems, the utility model provides a multi-point sampling device for water environment detection, which can achieve the effect of air-free water sampling, effectively avoid the problem of the sampling tube being subjected to large buoyancy, and thus effectively reduce the difficulty of using the multi-point sampling device.
[0004] The technical solution is as follows: a multi-point sampling device for water environment detection, including an inverted L-shaped handle, characterized in that a connecting plate is fixedly connected to the right side of the outer wall of the vertical section of the inverted L-shaped handle in sequence from top to bottom, and the right end of the connecting plate is fixedly connected to an airless sampling tube structure; an inverted L-shaped operating rod is arranged on the right side of the vertical section of the inverted L-shaped handle, and an inverted L-shaped connecting rod is fixedly connected to the left side of the outer wall of the vertical section of the inverted L-shaped operating rod in sequence from top to bottom, wherein the lower end of the vertical section of the inverted L-shaped connecting rod is fixedly connected to the upper side of the airless sampling tube structure; the horizontal section of the inverted L-shaped operating rod is located on the lower side of the horizontal section of the inverted L-shaped handle.
[0005] Preferably, the airless sampling tube structure is provided in multiple forms, including sampling tubes, wherein a water absorption column is provided in a sealing and sliding manner inside the sampling tube; a drainage valve is fixedly connected to the middle front opening of the lower part of the sampling tube; and a one-way valve is fixedly connected to the middle rear opening of the lower part of the sampling tube.
[0006] Compared with the prior art, the beneficial effects of the utility model are:
[0007] In the utility model, the arrangement of the sampling tube, water absorption column, drainage valve and one-way valve is conducive to achieving the effect of air-free water sampling, which can effectively avoid the problem of the sampling tube being subjected to large buoyancy, and further effectively reduce the difficulty of using the multi-point sampling device. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a structural schematic diagram of the utility model.
[0009] Figure 2 It is a partial cross-sectional schematic diagram of the airless sampling tube structure of the utility model.
[0010] In the figure:
[0011] 1. Inverted L-shaped handle; 2. Connecting plate; 3. Airless sampling tube structure; 31. Sampling tube; 32. Water absorption column; 33. Drain valve; 34. One-way valve; 4. Inverted L-shaped operating lever; 5. Inverted L-shaped connecting rod; 6. First anti-slip cover; 7. Second anti-slip cover. DETAILED DESCRIPTION
[0012] The present invention is described in detail below in conjunction with the accompanying drawings. As shown in Figure 1, a multi-point sampling device for water environment detection includes an inverted L-shaped handle 1, and the right side of the outer wall of the vertical section of the inverted L-shaped handle 1 is fixedly connected with a connecting plate 2 in sequence from top to bottom, and the right end of the connecting plate 2 is fixedly connected with an airless sampling tube structure 3; an inverted L-shaped operating rod 4 is arranged on the right side of the vertical section of the inverted L-shaped handle 1, and the left side of the outer wall of the vertical section of the inverted L-shaped operating rod 4 is fixedly connected with an inverted L-shaped connecting rod 5 in sequence from top to bottom, wherein the lower ends of the vertical sections of the inverted L-shaped connecting rod 5 are fixedly connected to the upper side of the airless sampling tube structure 3; the horizontal section of the inverted L-shaped operating rod 4 is located on the lower side of the horizontal section of the inverted L-shaped handle 1, so as to achieve the effect of airless water sampling, which can effectively avoid the problem of the sampling tube 31 being subjected to a large buoyancy, and thus can effectively reduce the difficulty of using the multi-point sampling device.
[0013] In this embodiment, specifically, a second anti-slip cover 7 is glued onto the horizontal section of the inverted L-shaped handle 1 .
[0014] In this embodiment, specifically, a first anti-slip sleeve 6 is glued to the horizontal section of the inverted L-shaped operating rod 4 .
[0015] In this embodiment, specifically, the first anti-slip cover 6 and the second anti-slip cover 7 are respectively made of rubber covers or polyvinyl alcohol sponge covers.
[0016] In this embodiment, combined with the Figure 2 As shown, the airless sampling tube structure 3 is provided with multiple ones, including sampling tubes 31, and the internal sealing and sliding of the sampling tube 31 is provided with a water absorption column 32; a drainage valve 33 is fixedly connected to the opening of the lower front side of the sampling tube 31; and a one-way valve 34 is fixedly connected to the opening of the lower rear side of the sampling tube 31.
[0017] In this embodiment, specifically, the left middle portion of the sampling cylinder 31 is fixedly connected to the right side of the connecting plate 2 .
[0018] In this embodiment, specifically, the upper middle portion of the water absorption column 32 is fixedly connected to the lower end of the vertical section of the inverted L-shaped connecting rod 5 .
[0019] In this embodiment, when sampling, first open the drain valve 33, fix the inverted L-shaped handle 1 with one hand, and push the inverted L-shaped operating rod 4 with the other hand, so that the inverted L-shaped operating rod 4 drives the water absorption column 32 to move downward through the inverted L-shaped connecting rod 5. At this time, the cavity inside the sampling cylinder 31 will gradually decrease, and the air inside the sampling cylinder 31 will be discharged into the atmosphere through the drain valve 33 until the lower end of the water absorption column 32 contacts the inner bottom of the sampling cylinder 31. Then, close the drain valve 33 and insert the device into the river water. Since there is no air inside the sampling cylinder 31, the sampling cylinder 31 will not be subjected to a large buoyancy. It is very easy for the operator to operate the device in the water. Then, the operator can fix the inverted L-shaped handle 1 with one hand and pull the inverted L-shaped operating rod 4 with the other hand, so that the inverted L-shaped operating rod 4 drives the water absorption column 32 to move upward through the inverted L-shaped connecting rod 5. At this time, negative pressure will be generated inside the sampling tube 31, and river water of different depths will enter the sampling tube 31 through the one-way valve 34 respectively. When the sampling is completed, the operator can remove the device from the river water to achieve the effect of air-free water sampling, which can effectively avoid the problem of the sampling tube 31 being subjected to a large buoyancy, thereby effectively reducing the difficulty of using the multi-point sampling device.
[0020] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.
Claims
1. A multi-point sampling device for water environment detection, comprising an inverted L-shaped handle (1), characterized in that: A connecting plate (2) is fixedly connected in sequence from top to bottom on the right side of the outer wall of the vertical section of the inverted L-shaped handle (1), and the right end of the connecting plate (2) is fixedly connected to an airless sampling cylinder structure (3); an inverted L-shaped operating rod (4) is provided on the right side of the vertical section of the inverted L-shaped handle (1), and an inverted L-shaped connecting rod (5) is fixedly connected in sequence from top to bottom on the left side of the outer wall of the vertical section of the inverted L-shaped operating rod (4), wherein the lower end of the vertical section of the inverted L-shaped connecting rod (5) is fixedly connected to the upper side of the airless sampling cylinder structure (3); and the horizontal section of the inverted L-shaped operating rod (4) is located at the lower side of the horizontal section of the inverted L-shaped handle (1).
2. The multi-point sampling device for water environment detection according to claim 1, characterized in that: A second anti-slip sleeve (7) is glued onto the horizontal section of the inverted L-shaped handle (1).
3. The multi-point sampling device for water environment detection according to claim 1, characterized in that: A first anti-slip sleeve (6) is glued onto the horizontal section of the inverted L-shaped operating rod (4).
4. The multi-point sampling device for water environment detection as claimed in claim 3, characterized in that: The first anti-slip cover (6) and the second anti-slip cover (7) are respectively made of rubber covers or polyvinyl alcohol sponge covers.
5. The multi-point sampling device for water environment detection according to claim 1, characterized in that: The airless sampling cylinder structure (3) is provided in plurality, each comprising a sampling cylinder (31), wherein a water absorption column (32) is provided in a sealing and sliding manner inside the sampling cylinder (31); a drainage valve (33) is fixedly connected to the middle front opening of the lower part of the sampling cylinder (31); and a one-way valve (34) is fixedly connected to the middle rear opening of the lower part of the sampling cylinder (31).
6. The multi-point sampling device for water environment detection as claimed in claim 5, characterized in that: The left middle portion of the sampling cylinder (31) is fixedly connected to the right side of the connecting plate (2).
7. The multi-point sampling device for water environment detection as claimed in claim 5, characterized in that: The upper middle portion of the water absorption column (32) is fixedly connected to the lower end of the vertical section of the inverted L-shaped connecting rod (5).