A sampling device for water conservancy detection
By designing a combination of sampling bucket and sampling mechanism, the problems of difficulty in deep water sampling and external pollution in existing technologies have been solved, realizing automatic deep water sampling and impurity filtration, and improving sampling efficiency and data accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNMING SOUTHERN WATER CO LTD
- Filing Date
- 2025-04-24
- Publication Date
- 2026-06-09
AI Technical Summary
Existing water sampling technologies cannot reach deep water areas, are easily contaminated by external factors, and are complex and inefficient, requiring professional personnel for operation and maintenance.
A device comprising a sampling bucket and a sampling mechanism is designed. The sampling mechanism is installed inside the sampling bucket. Through the combination of a sampling plate, a push rod, a connecting shaft and a pressure spring, deep water sampling is achieved. It is also equipped with a limiting mechanism and a screen to filter impurities.
It enables automated sampling in deep water, reduces external pollution, simplifies operations, and improves sampling efficiency and data accuracy.
Smart Images

Figure CN224341286U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of water quality sampling equipment, and in particular to a sampling device for water conservancy testing. Background Technology
[0002] In many fields, such as environmental monitoring, marine research, and geological exploration, the collection and analysis of water samples from wastewater is of great significance. However, traditional water sampling methods face many challenges and limitations.
[0003] Existing water sampling technologies have limitations in terms of depth, often failing to reach deeper waters and restricting research on deep-sea environments. Furthermore, water samples are susceptible to contamination from external factors during sampling, leading to reduced data accuracy and reliability. In addition, traditional sampling methods are relatively inefficient, potentially requiring significant time, manpower, and resources. The complexity of the sampling equipment also presents operational difficulties, necessitating professional operation and maintenance. Therefore, there is an urgent need for a novel wastewater sampling device to overcome the shortcomings of existing technologies and meet practical needs. Utility Model Content
[0004] The purpose of this invention is to provide a sampling device for water conservancy testing, which is not only simple in structure but also capable of sampling in deep water and easy to use.
[0005] The technical implementation scheme of this utility model is as follows:
[0006] A sampling device for water conservancy testing includes a sampling bucket and a sampling mechanism. The sampling bucket is a cylindrical cavity structure with openings at both ends. The sampling mechanism is installed inside the sampling bucket. The sampling mechanism includes a sampling plate, a push rod, a connecting shaft, a pressure spring, and a connecting bracket. The connecting bracket is installed on a connecting ring at the top of the sampling bucket. The push rod is installed inside a through hole of the connecting bracket, and the sampling plate is installed at one end of the push rod. Several connecting shafts are installed inside the through hole of the connecting bracket. One end of the connecting shaft is connected to the sampling plate, and the other end of the connecting shaft extends out of the through hole, with a pressure spring installed at the extended part to form an elastic structure. A sieve is installed at the other end of the sampling bucket.
[0007] Optionally, a rubber gasket is provided on the sampling plate.
[0008] Optionally, it also includes a limiting mechanism, which includes a first connecting seat, a first connecting rod, a limiting rod, and a second connecting rod. One end of the first connecting rod is connected to the outer wall of the sampling barrel through the first connecting seat, and a limiting rod is movably provided on the first fixing ear at the other end of the first connecting rod. The other end of the limiting rod is connected to the second fixing ear on the second connecting rod.
[0009] Optionally, the second fixing ear is connected to the limiting rod by a pin, and a steel wire rope is connected to the upper part of the pin.
[0010] Optionally, the second connecting rod is connected to the outer wall of the sampling bucket via a second connecting support.
[0011] Optionally, the limiting rod is inserted into the rectangular opening at the top of the push rod, and a rope retainer is provided on the push rod.
[0012] Optionally, the screen has a semi-circular structure and several through holes are provided on the upper part of the screen.
[0013] This utility model has the following advantages:
[0014] 1. This utility model has an independent sampling mechanism inside the sampling bucket, which can draw water by pushing the sampling plate. After the entire sampling bucket enters a certain depth of the sewage water area, water is taken by the sampling mechanism to achieve sampling in deep water areas.
[0015] 2. This utility model is equipped with an independent limiting mechanism, which can fix the entire push rod and use a pressure spring to keep the sampling plate in a downward state. After the pin is pulled out, water can be collected quickly.
[0016] 3. This utility model has a screen at the water inlet of the sampling bucket, which can filter out impurities in the water and is easy to use. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0018] Figure 2 This is the front view of the present utility model.
[0019] Figure 3 This is a schematic diagram of the exploded structure of this utility model.
[0020] Figure 4 This is a schematic diagram of part of the sampling mechanism of this utility model.
[0021] Figure 5 This is a schematic diagram of the structure of the screen connection of this utility model.
[0022] The meanings of the reference numerals in the figure are as follows: 1-Sampling bucket, 2-First connecting seat, 3-First connecting rod, 4-First fixing ear, 5-Limiting rod, 6-Second connecting rod, 7-Second fixing ear, 8-Sampling mechanism, 801-Sampling plate, 802-Connecting shaft, 803-Push rod, 804-Connecting bracket, 805-Pressure spring, 807-Pull rope fixing device, 808-Rectangular opening, 9-Connecting ring, 11-Screen. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.
[0024] like Figure 1-5 As shown, a sampling device for water conservancy testing includes a sampling barrel 1 and a sampling mechanism 8. The sampling barrel 1 is a cylindrical cavity structure with openings at both ends. The sampling mechanism 8 is installed inside the sampling barrel 1. The sampling mechanism 8 includes a sampling plate 801, a push rod 803, a connecting shaft 802, a pressure spring 805, and a connecting bracket 804. The connecting bracket 804 is installed on a connecting ring 9 on the upper part of the sampling barrel 1. The push rod 803 is installed inside the through hole of the connecting bracket 804, and the sampling plate 801 is installed at one end of the push rod 803. Several connecting shafts 802 are installed inside the through hole of the connecting bracket 804. One end of the connecting shaft 802 is connected to the sampling plate 801, and the other end of the connecting shaft 802 extends out of the through hole, and a pressure spring 805 is installed at the extended part to form an elastic structure. A screen 11 is installed at the other end of the sampling barrel 1. A rubber gasket is installed on the sampling plate 801.
[0025] It should be noted that during water quality testing, we need to collect water samples from different areas and depths. However, existing water sampling equipment can generally only collect samples in shallow wastewater areas. Larger equipment is typically used for collecting samples in deep wastewater. Therefore, we designed a device that can automatically sample in deep water areas as needed. The sampling tank 1 has a sampling mechanism 8 inside, which performs sampling. The sampling plate 801 is connected to the upper connecting bracket 804 via a push rod 803 and a connecting shaft 802, and the connection is made via a pressure spring on the connecting shaft 802. The sampling plate 801 is formed into an elastic structure, which facilitates its reset. Sampling is completed during the reset process. In use, the entire sampling plate 801 is first pressed down, and then the push rod 803 is fixed by the limiting mechanism, thereby limiting the entire sampling plate 801. Then, the entire sampling bucket 1 is placed in the water and submerged to a certain area. The steel wire rope is pulled to open the limiting mechanism. At this time, the sampling plate 801 is reset by the pressure spring 805, so that the water sample is introduced from the inlet area of the sampling bucket 1 to complete the sampling. The whole structure is relatively simple and highly practical.
[0026] like Figures 1-3As shown, it also includes a limiting mechanism, which includes a first connecting seat 2, a first connecting rod 3, a limiting rod 5, and a second connecting rod 6. One end of the first connecting rod 3 is connected to the outer wall of the sampling barrel 1 through the first connecting seat 2. The limiting rod 5 is movably provided on the first fixing ear 4 at the other end of the first connecting rod 3. The other end of the limiting rod 5 is connected to the second fixing ear 7 on the second connecting rod 6. The second fixing ear 7 and the limiting rod 5 are connected by a pin, and a steel wire rope is connected to the upper part of the pin. The second connecting rod 6 is connected to the outer wall of the sampling barrel 1 through a second connecting support.
[0027] It should be noted that, in order to reset the sampling plate 801 in the sampling bucket 1, we designed a limiting mechanism that can be inserted into the rectangular opening 808 on the push rod 803 by the limiting rod 5 and fixed and limited by the first connecting rod 3 at one end, thereby limiting the entire push rod 803 together with the sampling plate 801, so as to facilitate the opening of sampling after reaching the corresponding water area and depth.
[0028] It should be further explained that, in order for the entire sampling barrel 1 to open only after reaching a certain depth, both the limiting rod 5 and the second connecting rod 6 are provided with limiting holes, and the limiting holes are fixed by pins. After reaching the corresponding depth, the pins are pulled out by the wire rope, and the pressure spring 805 will bounce up by its own reset ability, and the push rod 803 will reset. During the reset process, the sampling plate 801 rises in the sampling barrel 1 to perform sampling and realize automatic sampling.
[0029] like Figure 1 , Figure 3 and Figure 5 As shown, the limiting rod 5 is inserted into the rectangular opening 808 at the top of the push rod 803, and the push rod 803 is equipped with a rope fixing device 807; the screen 11 has a semi-arc structure, and the upper part of the screen 11 is provided with several through holes.
[0030] It should be noted that the push rod 803 is equipped with a rope fixing device 807, which is used to tie the lifting rope, so that the operator can insert the entire sampling bucket 1 into the water source to be sampled. The screen 11 is designed to prevent impurities in the water source from entering, thus playing a blocking role.
[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A sampling device for water conservancy testing, comprising a sampling bucket (1) and a sampling mechanism (8), characterized in that, The sampling bucket (1) is a cylindrical cavity structure with openings at both ends, and a sampling mechanism (8) is installed inside the sampling bucket (1). The sampling mechanism (8) includes a sampling plate (801), a push rod (803), a connecting shaft (802), a pressure spring (805), and a connecting bracket (804). The connecting bracket (804) is set on the connecting ring (9) on the upper part of the sampling barrel (1). The push rod (803) is provided inside the through hole of the connecting bracket (804), and the sampling plate (801) is provided at one end of the push rod (803). The connecting bracket (804) has several connecting shafts (802) inside its through hole. One end of the connecting shaft (802) is connected to the sampling plate (801), and the other end of the connecting shaft (802) extends out of the through hole. A pressure spring (805) is provided at the extended part to form an elastic structure. A sieve (11) is provided at the other end of the sampling bucket (1).
2. A sampling device for water conservancy testing according to claim 1, characterized in that, A rubber gasket is provided on the sampling plate (801).
3. A sampling device for water conservancy testing according to claim 1, characterized in that, It also includes a limiting mechanism, which includes a first connecting seat (2), a first connecting rod (3), a limiting rod (5) and a second connecting rod (6). One end of the first connecting rod (3) is connected to the outer wall of the sampling barrel (1) through the first connecting seat (2), and the limiting rod (5) is movably provided on the first fixing ear (4) at the other end of the first connecting rod (3). The other end of the limiting rod (5) is connected to the second fixing ear (7) on the second connecting rod (6).
4. A sampling device for water conservancy testing according to claim 3, characterized in that, The second fixing ear (7) is connected to the limiting rod (5) by a pin, and a steel wire rope is connected to the upper part of the pin.
5. A sampling device for water conservancy testing according to claim 3, characterized in that, The second connecting rod (6) is connected to the outer wall of the sampling bucket (1) through the second connecting support.
6. A sampling device for water conservancy testing according to claim 1, characterized in that, The limiting rod (5) is inserted into the rectangular opening (808) at the top of the push rod (803), and a rope fixing device (807) is provided on the push rod (803).
7. A sampling device for water conservancy testing according to claim 1, characterized in that, The screen (11) has a semi-arc structure and several through holes are provided on the upper part of the screen (11).