Sampling device for water environment pollution

Abstract

The utility model discloses a sampling device for water environment pollution, which comprises a tank body, the top and the bottom of the tank body are both fixedly connected with a support, the support is hollow, a piston is arranged in the support, the outer surface of the piston is contacted with the inner wall of the tank body, a transmission structure is arranged in the tank body, and the outer surface of the transmission structure is contacted with the inner wall of the tank body. The transmission structure can control the piston to vertically ascend and descend and extrude liquid in the tank body to be discharged through the falling piston, the transmission structure is fixedly connected to a waterproof motor at the bottom of the support, and the output end of the waterproof motor is fixedly connected with a screw. The transmission structure is arranged to control vertical lifting of the first piston, the device can actively extrude and discharge internal upper-layer liquid when sinking into different water layers, cross contamination of samples at different depths is avoided, accuracy and reliability of stratified sampling are guaranteed, and the stratified sampling device is particularly suitable for being used in a water environment with non-uniform pollution distribution and has a wide application prospect. And the sampling efficiency and the data representativeness are improved.

Description

Technical Field

[0001] This utility model relates to the field of water environment pollution sampling technology, specifically a water environment pollution sampling device. Background Technology

[0002] Water pollution sampling is a key part of environmental monitoring. Its core objective is to obtain representative samples that can truly reflect the state of water pollution. The entire process involves rigorous planning, operation, and recording.

[0003] For example, the patent application number published on the China Patent Network is 202121786254.2, and the patent name is: A sampling device for water environment pollution prevention and control. It includes a sampling bucket, a protective cover, a connecting bottom frame, a fine-pore barrier cover, a sealing plate, and a fine-pore filter screen. The upper end of the sampling bucket is fitted with a protective cover, and the upper end of the protective cover is fitted with a fine-pore filter screen. A sealing plate is set on the lower side of the inside of the sampling bucket. The lower side of the annular side of the sampling bucket is fitted with a connecting bottom frame, and a fine-pore barrier cover is welded to the lower end of the connecting bottom frame. This design solves the problem that the original sampling bucket does not have the ability to block debris and has poor practicality. This utility model has a reasonable structure, has the ability to block debris, is easy to carry and use, and is very convenient to use.

[0004] However, the sampling methods of existing sampling devices are relatively simple. When the sampling device is filled with the upper layer of liquid, the continuously sinking sampling device cannot effectively drain the internal liquid, which affects the stratified sampling effect of the sampling device.

[0005] Therefore, it is necessary to redesign and modify the sampling devices used for water pollution. Utility Model Content

[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide a sampling device for water pollution, which has the advantage of facilitating stratified sampling. It solves the problem that the sampling method of existing sampling devices is relatively simple, and when the sampling device is filled with the upper layer of liquid, the continuously sinking sampling device cannot effectively drain the internal liquid, thus affecting the stratified sampling effect of the sampling device.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a sampling device for water pollution, comprising a tank;

[0008] The top and bottom of the tank are fixedly connected to the brackets, which are hollow in shape. A piston is installed inside the bracket, and the outer surface of the piston contacts the inner wall of the tank. A transmission structure is installed inside the tank, which can control the vertical lifting and lowering of the piston and use the falling piston to squeeze the liquid inside the tank to be discharged.

[0009] In a preferred embodiment of this utility model, the transmission structure is fixedly connected to a waterproof motor at the bottom of the support. A screw is fixedly connected to the output end of the waterproof motor. The top end of the screw passes through the support and the tank in sequence and is movably connected to the support. The piston is sleeved on the surface of the screw and threadedly connected to the screw. When the waterproof motor controls the screw to rotate, it can drive the piston to rise and fall vertically using the thread.

[0010] As a preferred embodiment of this utility model, guide strips are fixedly connected to the four corners of the piston top. The side of the guide strip away from the piston passes through the bracket and extends to the top of the tank. The guide strip is slidably connected to the bracket.

[0011] As a preferred embodiment of this utility model, a cover plate is fixedly connected to the top of the guide strip, the cover plate can seal the tank when it is lowered, and a hook is fixedly connected to the top of the cover plate.

[0012] As a preferred embodiment of this utility model, a sleeve is fitted over the surface of the tank, and a support leg is fixedly connected to the bottom of the sleeve, with the support leg located outside the waterproof motor.

[0013] As a preferred embodiment of this utility model, the surface of the sleeve is provided with an adjustment groove, and the surface of the tank is fixedly connected with a limiting rod located inside the adjustment groove. The surface of the limiting rod is threadedly connected with a torsion block located outside the sleeve.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model controls the vertical lifting and lowering of the first piston by setting a transmission structure. The device can actively squeeze out the upper liquid inside when sinking into different water layers, avoiding cross-contamination of samples at different depths, ensuring the accuracy and reliability of stratified sampling, and is especially suitable for use in water environments with uneven pollution distribution, thus improving sampling efficiency and data representativeness.

[0016] 2. This utility model provides a stable and controllable mechanical drive mechanism. The waterproof motor can operate reliably in an underwater environment, avoiding damage due to water seepage. The screw converts the rotational motion into the vertical lifting and lowering of the piston through the thread, achieving precise height adjustment, enhancing the efficiency and consistency of piston movement, and reducing manual intervention and operational errors.

[0017] 3. This utility model uses a guide strip fixed to the top of the piston and slidably connected to the bracket, which enhances the stability and guiding performance of the entire system. The guide strip prevents the piston from rotating or deviating during the lifting process, ensuring the sealing between the piston and the inner wall of the tank and avoiding leakage or jamming problems.

[0018] 4. This utility model uses a cover plate fixed to the top of the guide strip to seal the tank and is equipped with a hook, which realizes automatic sealing function and easy operation. When the first piston descends, the cover plate moves down synchronously to completely seal the top of the tank, preventing external water from seeping in during sampling and ensuring the purity and representativeness of the sample.

[0019] 5. This utility model enhances the stability and protection of the device by using a sleeve fitted on the surface of the tank and a support leg at the bottom. The support leg provides external support for the waterproof motor, preventing damage to the motor when the device sinks to the bottom or collides with it, thus extending the equipment's lifespan.

[0020] 6. This utility model uses an adjustment groove, a limiting rod, and a torsion block for depth adjustment, which increases the flexibility and adaptability of the device: the adjustment groove allows the limiting rod to slide, and the relative position of the tank and the sleeve can be quickly locked by rotating the torsion block, so as to realize the custom adjustment of the sampling depth. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic cross-sectional view of the present invention.

[0023] Figure 3 This is a schematic cross-sectional view of the shrinkage structure of this utility model;

[0024] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0025] In the diagram: 1. Tank body; 2. Support; 3. Piston; 4. Transmission structure; 5. Waterproof motor; 6. Screw; 7. Guide bar; 8. Cover plate; 9. Hook; 10. Sleeve; 11. Support leg; 12. Adjustment groove; 13. Limiting rod; 14. Torque block. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1 to 4 As shown, the present invention provides a sampling device for water pollution, including a tank 1;

[0028] The top and bottom of the tank 1 are fixedly connected to the support 2. The support 2 is hollow. The piston 3 is installed inside the support 2. The outer surface of the piston 3 is in contact with the inner wall of the tank 1. The transmission structure 4 is installed inside the tank 1. The transmission structure 4 can control the piston 3 to rise and fall vertically and use the falling piston 3 to squeeze the liquid inside the tank 1 to discharge it.

[0029] refer to Figure 3 The transmission structure 4 is fixedly connected to the waterproof motor 5 at the bottom of the bracket 2. The output end of the waterproof motor 5 is fixedly connected to the screw 6. The top end of the screw 6 passes through the bracket 2 and the tank 1 in sequence and is movably connected to the bracket 2. The piston 3 is sleeved on the surface of the screw 6 and threadedly connected to the screw 6. When the waterproof motor 5 controls the screw 6 to rotate, it can drive the piston 3 to rise and fall vertically using the thread.

[0030] As a technical optimization of this utility model, a stable and controllable mechanical drive mechanism is provided. The waterproof motor 5 can operate reliably in an underwater environment, avoiding damage due to water seepage. The screw 6 converts the rotational motion of the screw into the vertical lifting and lowering of the piston 3 through the screw thread, realizing precise height adjustment, enhancing the efficiency and consistency of the piston 3's movement, and reducing manual intervention and operational errors.

[0031] refer to Figure 3 Guide bars 7 are fixedly connected to the four corners of the top of the piston 3. The side of the guide bar 7 away from the piston 3 passes through the bracket 2 and extends to the top of the tank body 1. The guide bar 7 is slidably connected to the bracket 2.

[0032] As a technical optimization of this utility model, the guide strip 7 is fixed to the top of the piston 3 and slidably connected to the bracket 2, which enhances the stability and guiding performance of the entire system. The guide strip 7 prevents the piston 3 from rotating or shifting during the lifting process, ensuring the sealing between the piston 3 and the inner wall of the tank 1, and avoiding leakage or jamming problems.

[0033] refer to Figure 2 The top of the guide bar 7 is fixedly connected to a cover plate 8, which can seal the tank 1 when it is lowered. The top of the cover plate 8 is fixedly connected to a hook 9.

[0034] As a technical optimization of this utility model, the cover plate 8 is fixed to the top of the guide strip 7 to seal the tank 1 and is equipped with a hook 9, which realizes automatic sealing function and easy operation. When the first piston 3 descends, the cover plate 8 moves down synchronously to completely seal the top of the tank 1, preventing external water from seeping in during sampling and ensuring the purity and representativeness of the sample.

[0035] refer to Figure 1 The surface of the tank body 1 is fitted with a sleeve 10, and the bottom of the sleeve 10 is fixedly connected to a support leg 11, which is located outside the waterproof motor 5.

[0036] As a technical optimization of this utility model, the stability and protection performance of the device are enhanced by the sleeve 10 fitted on the surface of the tank body 1 and the support leg 11 at the bottom. The support leg 11 provides external support for the waterproof motor 5, avoiding damage to the motor when the device sinks to the bottom or collides, and extending the service life of the equipment.

[0037] refer to Figure 4 The surface of the sleeve 10 is provided with an adjustment groove 12, and the surface of the tank 1 is fixedly connected with a limiting rod 13 located inside the adjustment groove 12. The surface of the limiting rod 13 is threadedly connected with a torsion block 14 located outside the sleeve 10.

[0038] As a technical optimization of this utility model, the depth adjustment function is achieved by using the adjustment groove 12, the limiting rod 13 and the torsion block 14, which increases the flexibility and adaptability of the device: the adjustment groove 12 allows the limiting rod 13 to slide, and the relative position of the tank 1 and the sleeve 10 can be quickly locked by rotating the torsion block 14, so as to realize the custom adjustment of the sampling depth.

[0039] The working principle and usage process of this utility model: The tank 1 is suspended by the top hook 9 and sinks to the target water area. During the sinking process, water flows into the tank 1 through the hollow support 2 at the bottom of the tank 1. At this time, the piston 3 is in a high position, and the tank 1 can be freely filled with water. When the device sinks to the specified depth and layered sampling is required, the waterproof motor 5 starts and drives the screw 6 to rotate. Because the piston 3 is threaded onto the screw 6 and its rotation is restricted by the guide bar 7, the rotation of the screw 6 forces the piston 3 to move downward along the guide bar 7. The descending piston 3 squeezes... The liquid inside the tank 1 is discharged outward through the bottom perforated support 2 under the pressure of the piston 3. The piston 3 continues to move downward until the target liquid layer depth is reached, ensuring that the original upper layer liquid in the tank is completely discharged. At the same time, the liquid of the target liquid layer enters the tank 1 through the top support 2 to avoid cross-contamination of samples from different water layers. When the piston 3 descends to the bottom of the tank 1 and contacts the support 2 at the bottom of the tank 1, the top cover 8 descends simultaneously and presses against the top of the tank 1 to form a seal. At this time, the water at the target depth is sealed inside the tank 1, completing the collection of the current stratified sample.

[0040] In summary, this water pollution sampling device, by setting up a transmission structure 4 to control the vertical lifting and lowering of the first piston 3, can actively squeeze out the upper layer of liquid inside when sinking into different water layers, avoiding cross-contamination of samples at different depths, ensuring the accuracy and reliability of stratified sampling, and is especially suitable for use in water environments with uneven pollution distribution, improving sampling efficiency and data representativeness.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sampling device for water pollution, comprising a tank (1); Its features are: The top and bottom of the tank (1) are fixedly connected to a bracket (2). The bracket (2) is hollow. A piston (3) is installed inside the bracket (2). The outer surface of the piston (3) is in contact with the inner wall of the tank (1). A transmission structure (4) is installed inside the tank (1). The transmission structure (4) can control the piston (3) to rise and fall vertically and use the falling piston (3) to squeeze the liquid inside the tank (1) to discharge it.

2. The sampling device for water pollution according to claim 1, characterized in that: The transmission structure (4) is fixedly connected to the waterproof motor (5) at the bottom of the bracket (2). The output end of the waterproof motor (5) is fixedly connected to the screw (6). The top end of the screw (6) passes through the bracket (2) and the tank (1) in sequence and is movably connected to the bracket (2). The piston (3) is sleeved on the surface of the screw (6) and threadedly connected to the screw (6). When the waterproof motor (5) controls the screw (6) to rotate, it can drive the piston (3) to rise and fall vertically using the thread.

3. A sampling device for water pollution according to claim 2, characterized in that: Guide strips (7) are fixedly connected to the four corners of the top of the piston (3). The side of the guide strip (7) away from the piston (3) passes through the bracket (2) and extends to the top of the tank (1). The guide strip (7) is slidably connected to the bracket (2).

4. A sampling device for water pollution according to claim 3, characterized in that: The top of the guide strip (7) is fixedly connected to a cover plate (8), which can seal the tank (1) when it is lowered, and the top of the cover plate (8) is fixedly connected to a hook (9).

5. A sampling device for water pollution according to claim 2, characterized in that: The surface of the tank (1) is fitted with a sleeve (10), and the bottom of the sleeve (10) is fixedly connected with a support leg (11), which is located outside the waterproof motor (5).

6. A sampling device for water pollution according to claim 5, characterized in that: The surface of the sleeve (10) is provided with an adjustment groove (12), and the surface of the tank (1) is fixedly connected with a limiting rod (13) located inside the adjustment groove (12), and the surface of the limiting rod (13) is threadedly connected with a torsion block (14) located outside the sleeve (10).

Images