Water quality stratified sampling device for environmental detection

Abstract

The utility model discloses a water quality stratified sampling device for environmental detection, which belongs to the technical field of environmental monitoring and comprises a sampling frame, a plurality of samplers are arranged in the sampling frame in a sliding manner, a shell is arranged on the samplers, a rotating handle is rotatably arranged on the shell, a rotating rod is arranged below the rotating handle, and the rotating rod is connected with the sampling frame. A gear is arranged at the end, extending into the shell, of the rotating rod, racks are engaged with the front side face and the rear side face of the gear, moving plates are arranged on the side faces, away from each other, of the racks, a plurality of springs are arranged between the moving plates, and positioning rods are arranged at the ends, away from each other, of the moving plates. Positioning holes are symmetrically formed in the two opposite side walls in the sampling frame, the positioning holes are matched with the positioning rods in an inserted mode, the sampler can directly move to a proper position in the sampling frame, the rotating handle is loosened, the spring pushes the moving plate to reset, the positioning rods are driven to be inserted into the positioning holes again, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental monitoring, in particular to an environmental detection water quality stratified sampling device. Background Art

[0002] Environmental monitoring refers to the activities of environmental monitoring agencies to monitor and measure environmental quality. Environmental monitoring determines the extent of environmental pollution and the level of environmental quality by monitoring and measuring indicators that reflect environmental quality. Water quality testing is a key component of environmental monitoring. Currently, determining whether surface water quality meets standards requires sampling, testing, and analysis. This sampling also requires sampling at a specific depth to determine whether water quality at different depths meets standards.

[0003] For example, the "A Stratified Sampling Device for Environmental Testing of Water Quality" disclosed in Patent Publication No. CN221464983U, which slides the mounting bar and the adjustment slot into the mounting frame, and through the action of a spring, when the positioning block slides to the positioning port, the positioning block and the positioning port limit the placement frame, and the sampling component is adjusted to the corresponding height, thereby improving the practicality of the device. When adjusting the height position, the above structure requires first removing the entire sampling component from the mounting frame, and then sliding it into the adjustment slot through the mounting bar for positioning. However, the higher the degree of freedom of height adjustment, the more adjustment slots are set and the smaller the spacing. In the process of removing and reinstalling the entire sampling component, the installation position of the sampling component needs to be determined by the naked eye. It is easy to select an installation position that is not accurate enough due to the small spacing. The above steps need to be repeated to try installation again and again, which is more troublesome to use. In addition, the sampling component may be broken or damaged due to instability during the removal process. Utility Model Content

[0004] The technical problem to be solved by the present invention is that the above structure is easily not accurately selected due to the position, and the above steps need to be repeated for trial installation, which is troublesome to use.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is: an environmental detection water quality stratification sampling device, including a base, a retractable device is provided on the base, a sampling frame is provided on the retractable device, a plurality of samplers are slidably provided in the sampling frame, a positioning device is provided on the sampler, the positioning device includes a shell located above the sampler, a rotating handle is rotatably provided on the shell, a rotating rod is provided under the rotating handle, a gear is provided at one end of the rotating rod extending into the shell, the front and rear sides of the gear are meshed with racks, the sides of the racks away from each other are provided with movable plates, the movable plates are slidably connected to the shell, a plurality of springs are provided between the movable plates, and the ends of the movable plates away from each other are provided with positioning rods, and symmetrical positioning holes are provided on the opposite side walls in the sampling frame, and the positioning holes are plugged into the positioning rods.

[0006] As a further solution of the present invention, the retracting and unfolding device includes an A-type frame symmetrically arranged on both sides of the base, turntables are provided on opposite sides of the A-type frame, and a winding roller is provided between the turntables. One of the A-type frames is provided with a motor, and the output end of the motor is connected to the turntable on the same side. A winding rope is wound on the winding roller, and an elevated frame is provided in front of the A-type frame, and a connecting rod is provided between the elevated frames. A roller is provided on the connecting rod, and one end of the winding rope passes around the roller and is connected to the sampling frame.

[0007] As a further solution of the present invention, a T-shaped slider is provided at the rear of the sampler, and a slide groove that slides with the T-shaped slider is provided in the sampling frame.

[0008] As a further solution of the present invention, a circle of anti-slip knurling is provided around the rotating handle.

[0009] As a further solution of the present invention, a counterweight block is provided under the sampling frame.

[0010] As a further solution of the present invention, universal wheels are provided at the four corners below the base.

[0011] The advantages of the present invention over the prior art are: by providing a positioning device, rotating the rotary handle drives the gear to rotate, and the gear engages with the racks on the front and rear sides to drive their relative movement, thereby driving the movable plates to approach each other, so that the positioning rod is pulled out of the positioning hole. At this time, the sampling assembly can be directly moved to a suitable position in the sampling frame, and the rotary handle is released. The spring pushes the movable plate to reset, driving the positioning rod to be reinserted into the positioning hole. This structure does not require repeated trial installation of the installation position of the sampling assembly. It only needs to release the rotary handle after the sampler is moved to the appropriate position, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1It is a stereoscopic diagram of a water quality stratified sampling device for environmental detection according to the present utility model.

[0013] Figure 2 It is an enlarged schematic diagram of the structure of part A of an environmental detection water quality stratified sampling device of the present utility model.

[0014] Figure 3 The utility model is a schematic diagram of the internal structure of the shell of an environmental detection water quality stratification sampling device.

[0015] Figure 4 The utility model is a schematic diagram of the structure of a retractable device of an environmental detection water quality stratified sampling device.

[0016] As shown in the figure: 1. Base; 2. Sampling frame; 3. Sampler; 4. Shell; 5. Rotating handle; 6. Rotating rod; 7. Gear; 8. Rack; 9. Moving plate; 10. Spring; 11. Positioning rod; 12. Positioning hole; 13. A-frame; 14. Turntable; 15. Winding roller; 16. Motor; 17. Winding rope; 18. Lifting frame; 19. Connecting rod; 20. Roller; 21. T-shaped slider; 22. Slide; 23. Counterweight; 24. Universal wheel. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] In the description of the utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0019] Combined with attachment Figure 1 、 Figure 2A stratified sampling device for environmental detection of water quality comprises a base 1, universal wheels 24 are provided at the four corners below the base 1, a retractable device is provided on the base 1, a sampling frame 2 is provided on the retractable device, a counterweight block 23 is provided under the sampling frame 2 to prevent the sampling frame 2 from floating on the water surface, a plurality of samplers 3 are slidingly provided in the sampling frame 2, a T-shaped slider 21 is provided behind the sampler 3, and a slide groove 22 is provided in the sampling frame 2 for sliding cooperation with the T-shaped slider 21. The T-shaped setting can prevent the sampler 2 from detaching from the sampling frame 3.

[0020] Combined with attachment Figure 2 、 Figure 3 The sampler 3 is provided with a positioning device, which includes a shell 4 located above the sampler 3. A rotating handle 5 is rotatably provided on the shell 4. A circle of anti-slip knurling is provided around the rotating handle 5. When the user rotates the rotating handle 5, the friction between the user and the finger is increased, which plays an anti-slip role. A rotating rod 6 is provided under the rotating handle 5. One end of the rotating rod 6 extending into the shell 4 is provided with a gear 7. The front and rear sides of the gear 7 are meshed with racks 8. The sides of the racks 8 away from each other are provided with movable plates 9. The movable plates 9 are slidably connected to the shell 4. Several springs 10 are provided between the movable plates 9. The ends of the movable plates 9 away from each other are provided with positioning rods 11. Symmetrically arranged positioning holes 12 are provided on the opposite side walls in the sampling frame 2, and the positioning holes 12 are plugged into the positioning rods 11.

[0021] Combined with attachment Figure 1 、 Figure 4 The retracting and unfolding device includes an A-shaped frame 13 symmetrically arranged on both sides of the base 1, and a turntable 14 is provided on the opposite sides of the A-shaped frame 13. A winding roller 15 is provided between the turntables 14. A motor 16 is provided on one of the A-shaped frames 13, and the output end of the motor 16 is connected to the turntable 14 on the same side. A winding rope 17 is wound on the winding roller 15. An elevated frame 18 is provided in front of the A-shaped frame 13, and a connecting rod 19 is provided between the elevated frames 18. A roller 20 is provided on the connecting rod 19, and one end of the winding rope 17 is connected to the sampling frame 2 after passing through the roller 20.

[0022] When the utility model is implemented, the user first holds the bottom of the sampler with one hand, and then rotates the rotating handle with the other hand, which drives the gear to rotate, and the gear meshes with the racks on the front and rear sides to drive them to move relative to each other, thereby driving the moving plates to move closer to each other, squeezing the spring, and at the same time making the positioning rod withdrawn from the positioning hole, releasing the sampler from the embankment, and then the sampling assembly can be freely moved directly in the sampling frame. After moving to the appropriate position, the rotating handle is released, and the spring pushes the moving plate to reset, driving the positioning rod to reinsert the positioning hole, and the sampler is positioned and installed. This structure does not require repeated trial installation of the installation position of the sampling assembly, and it is only necessary to release the rotating handle after the sampler is moved to the appropriate position, which is more convenient to use.

[0023] After the adjustment is completed, the motor is started, the motor drives the turntable to rotate, the turntable drives the winding roller to rotate, the winding rope is lengthened, and under the gravity of the counterweight block, the sampling frame enters the water for sampling.

[0024] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A water quality stratification sampling device for environmental detection, comprising a base (1), characterized in that: The base (1) is provided with a retracting device, the retracting device is provided with a sampling frame (2), a plurality of samplers (3) are slidably provided in the sampling frame (2), a positioning device is provided on the sampler (3), the positioning device comprises a shell (4) located above the sampler (3), a rotating handle (5) is rotatably provided on the shell (4), a rotating rod (6) is provided below the rotating handle (5), a gear (7) is provided at one end of the rotating rod (6) extending into the shell (4), the front and rear sides of the gear (7) are meshed with racks (8), the sides of the racks (8) away from each other are provided with moving plates (9), the moving plates (9) are slidably connected to the shell (4), a plurality of springs (10) are provided between the moving plates (9), and the ends of the moving plates (9) away from each other are provided with positioning rods (11), and symmetrical positioning holes (12) are provided on the opposite side walls in the sampling frame (2), and the positioning holes (12) are plugged into and matched with the positioning rods (11).

2. The environmental detection water quality stratification sampling device according to claim 1, characterized in that: The retracting and unfolding device comprises an A-shaped frame (13) symmetrically arranged on both sides of the base (1), a turntable (14) is provided on opposite sides of the A-shaped frame (13), a winding roller (15) is provided between the turntables (14), a motor (16) is provided on one of the A-shaped frames (13), the output end of the motor (16) is connected to the turntable (14) on the same side, a winding rope (17) is wound on the winding roller (15), and an elevated frame (18) is provided in front of the A-shaped frame (13), a connecting rod (19) is provided between the elevated frames (18), a roller (20) is provided on the connecting rod (19), and one end of the winding rope (17) passing around the roller (20) is connected to the sampling frame (2).

3. The device for stratifying and sampling water quality for environmental testing according to claim 1, characterized in that: A T-shaped slide block (21) is provided at the rear of each sampler (3), and a slide groove (22) that is slidably matched with the T-shaped slide block (21) is provided in the sampling frame (2).

4. The device for stratifying and sampling water quality for environmental testing according to claim 1, characterized in that: A circle of anti-skid knurling is provided around the rotating handle (5).

5. The device for stratified sampling of water quality for environmental testing according to claim 1, characterized in that: A counterweight (23) is provided below the sampling frame (2).

6. The device for stratified sampling of water quality for environmental testing according to claim 1, characterized in that: Universal wheels (24) are provided at the four corners below the base (1).

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